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#1
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Q: The Condition of this S/S?
How would you describe the condition of this S/S? How would you grade its
quality? http://www.artonstamps.org/topicals/...sheet-face.pdf http://www.artonstamps.org/topicals/...sheet-back.pdf Would someone also explain what causes such flows. TIA. Note about the scans: The gray band on the top of the image of the back is a shadow that doesn't really appear on the S/S. The same applies to the gray shadows that appear on the indentations (saliencies?) on both faces and certainly highlight (by amplifying) the flaws. -- Victor Manta ---------------------------------------------------------------------------- Art on Stamps: http://artonstamps.org/ Philatelic Webmasters Organization: http://pwmo.org/ Romania by Stamps: http://marci-postale.com/ Communism on Stamps: http://reds-on.postalstamps.biz/ Spanish North Africa: http://www.sna-on.postalstamps.biz/ ---------------------------------------------------------------------------- |
#2
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Q: The Condition of this S/S?
"Victor Manta" wrote in message
... How would you describe the condition of this S/S? How would you grade its quality? http://www.artonstamps.org/topicals/...sheet-face.pdf http://www.artonstamps.org/topicals/...sheet-back.pdf Would someone also explain what causes such flows. TIA. Note about the scans: The gray band on the top of the image of the back is a shadow that doesn't really appear on the S/S. The same applies to the gray shadows that appear on the indentations (saliencies?) on both faces and certainly highlight (by amplifying) the flaws. Please read: Would someone also explain what causes such flaws. VM |
#3
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Q: The Condition of this S/S?
On Sat, 14 Sep 2013 14:41:59 -0400, "Victor Manta"
sharpened a crayon and wrote: "Victor Manta" wrote in message ... How would you describe the condition of this S/S? How would you grade its quality? http://www.artonstamps.org/topicals/...sheet-face.pdf http://www.artonstamps.org/topicals/...sheet-back.pdf Would someone also explain what causes such flows. TIA. Note about the scans: The gray band on the top of the image of the back is a shadow that doesn't really appear on the S/S. The same applies to the gray shadows that appear on the indentations (saliencies?) on both faces and certainly highlight (by amplifying) the flaws. Please read: Would someone also explain what causes such flaws. VM angle of the light trqaverse in the scanner vs the slight cupping of the item and the reflectivity of the paper or gum. If you use a 'thick' card, such as heavy poster paper, preferably black, 99% of it should disappear. Also add a book to 'flatten', if your scanner doesn't have enough pressure by the cover 'pad'. Better scanning will also result if you 'standardise' by adding a small strip of 100+ 'white' with a 'black' cut from a good mount or sales card. {NOT the 103 cards - that's not 'black'!} Scanners are only as good as the operator. |
#4
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Q: The Condition of this S/S?
"Sir F.A. Rien" wrote in message
... On Sat, 14 Sep 2013 14:41:59 -0400, "Victor Manta" sharpened a crayon and wrote: "Victor Manta" wrote in message ... How would you describe the condition of this S/S? How would you grade its quality? http://www.artonstamps.org/topicals/...sheet-face.pdf http://www.artonstamps.org/topicals/...sheet-back.pdf Would someone also explain what causes such flows. TIA. Note about the scans: The gray band on the top of the image of the back is a shadow that doesn't really appear on the S/S. The same applies to the gray shadows that appear on the indentations (saliencies?) on both faces and certainly highlight (by amplifying) the flaws. Please read: Would someone also explain what causes such flaws. VM angle of the light trqaverse in the scanner vs the slight cupping of the item and the reflectivity of the paper or gum. If you use a 'thick' card, such as heavy poster paper, preferably black, 99% of it should disappear. Also add a book to 'flatten', if your scanner doesn't have enough pressure by the cover 'pad'. Better scanning will also result if you 'standardise' by adding a small strip of 100+ 'white' with a 'black' cut from a good mount or sales card. {NOT the 103 cards - that's not 'black'!} Scanners are only as good as the operator. Thanks for the suggestion. I'll try to find a big enough black piece of paper/cardboard, like the one that I used in my previous scanner. Here are the results with the only black card that I found in my newer environment: http://www.artonstamps.org/topicals/...eet-face-1.pdf http://www.artonstamps.org/topicals/...eet-back-1.pdf It is probably better, even if somehow darker than on the first scans: http://www.artonstamps.org/topicals/...-sheet-fac.pdf http://www.artonstamps.org/topicals/...sheet-back.pdf Taking into consideration that scanning techniques weren't necessarily my priority when asking the question found in the subject line, I don't lose hope of learning more about the flaws and the grading of this S/S. -- Victor Manta, PWO, AIJP ---------------------------------------------------------------------------- Philatelic Webmasters Organization: http://pwmo.org/ Art on Stamps: http://artonstamps.org/ Romania by Stamps: http://marci-postale.com/ Communism on Stamps: http://reds-on.postalstamps.biz/ Spanish North Africa: http://www.sna-on.postalstamps.biz/ ---------------------------------------------------------------------------- |
#5
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Q: The Condition of this S/S?
Taking into consideration that scanning techniques weren't necessarily my
priority when asking the question found in the subject line, I don't lose hope of learning more about the flaws and the grading of this S/S. I can't help with the issue as I don't collect that area, but as you -=did=- mention a scanning problem, I thought some information might be of use. As with you usually, that apparently was a waste! |
#6
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Q: The Condition of this S/S?
"Sir F.A. Rien" wrote in message
... Taking into consideration that scanning techniques weren't necessarily my priority when asking the question found in the subject line, I don't lose hope of learning more about the flaws and the grading of this S/S. I can't help with the issue as I don't collect that area, but as you -=did=- mention a scanning problem, I thought some information might be of use. As with you usually, that apparently was a waste! I don't see what should I have done to please you more, Sir F.A. Rien! Eventually reread what I wrote: "Thanks for the suggestion. Here are the results with the only black card that I found in my newer environment: http://www.artonstamps.org/topicals/...eet-face-1.pdf http://www.artonstamps.org/topicals/...eet-back-1.pdf It is probably better, even if somehow darker than on the first scans: " It took some time to do all this but I considered that it was worth a try. I haven't changed my mind since. As for my basic question, it was and still is addressed to the ng as a whole. With so few participants, it doesn't take me wonder that there are less answers than in the past but it was worth a try too, for at least refreshing a bit the list of postings. Finally, I'd like to thank you personally for your contributions, that help to hold this ng alive. -- Victor Manta, PWO, AIJP ---------------------------------------------------------------------------- Philatelic Webmasters Organization: http://pwmo.org/ Art on Stamps: http://artonstamps.org/ Romania by Stamps: http://marci-postale.com/ Communism on Stamps: http://reds-on.postalstamps.biz/ Spanish North Africa: http://www.sna-on.postalstamps.biz/ ---------------------------------------------------------------------------- |
#7
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Q: The Condition of this S/S?
On 9/14/2013 2:36 PM, Victor Manta wrote:
How would you describe the condition of this S/S? Perhaps lightly wrinkled. How would you grade its quality? I understand 'grade' to mostly refer to centering, of single stamps. That is not so much an issue for SS, but this one is well centered. http://www.artonstamps.org/topicals/...sheet-face.pdf http://www.artonstamps.org/topicals/...sheet-back.pdf Would someone also explain what causes such flows. Do you mean real flaws? (if so, which? I am not sure I see any other than some minor curl and wrinkle) or apparent flaws from the scan shadow? For the latter, a scanner has to have the light offset from the sensors, (and the sensors shielded from the light). The scanner used here seems to have sensors pointing straight up with light hitting as a noticeable angle. Did you have the lid down on the scanner, to flatten the sheet? Terry TIA. Note about the scans: The gray band on the top of the image of the back is a shadow that doesn't really appear on the S/S. The same applies to the gray shadows that appear on the indentations (saliencies?) on both faces and certainly highlight (by amplifying) the flaws. |
#8
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Q: The Condition of this S/S?
"Terry Reedy" wrote in message
... On 9/14/2013 2:36 PM, Victor Manta wrote: How would you describe the condition of this S/S? Perhaps lightly wrinkled. How would you grade its quality? I understand 'grade' to mostly refer to centering, of single stamps. That is not so much an issue for SS, but this one is well centered. http://www.artonstamps.org/topicals/...sheet-face.pdf http://www.artonstamps.org/topicals/...sheet-back.pdf Would someone also explain what causes such flows. Do you mean real flaws? (if so, which? I am not sure I see any other than some minor curl and wrinkle) or apparent flaws from the scan shadow? For the latter, a scanner has to have the light offset from the sensors, (and the sensors shielded from the light). The scanner used here seems to have sensors pointing straight up with light hitting as a noticeable angle. Did you have the lid down on the scanner, to flatten the sheet? Terry Note about the scans: The gray band on the top of the image of the back is a shadow that doesn't really appear on the S/S. The same applies to the gray shadows that appear on the indentations (saliencies?) on both faces and certainly highlight (by amplifying) the flaws. Thank you, Terry! Yes, the lid of the scanner was down and therefore the sheet was flattened. Here is what I found a few hours ago: "Instances where the gum can affect the numerical grade or be mentioned in the opinion mostly emanate from the actual process of the gum drying after being laid down at the time of application. As the gum dries after this application, several things may occur, most of which are considered minor faults: 1.Gum Bends – light bends in the gum but no crease in the paper. 2.Gum Creases – bends in the gum that actually cause a crease or pucker in the paper in the affected area." http://www.stampauthentication.com/Grading.html Considering this quote, and the fact that I see many bends on the face of the S/S too, I'm inclined to believe that: - These faults in the gum, eventually leading to creases in the paper itself, affect the grading - The important number of these flaws, many of them visible with the naked eye on both faces, should drive the grading quite low - Even if the scanning process brings some visual distortions (or enhancements) of the flaws, its result point us correctly to the flaws themselves and make them better visible on the scans. I'll be glad if somebody proves me wrong, because I'm in possession of this S/S :-) As I understand it from the quotation above, the flaws come from the improper drying of the gum during the fabrication, which means that this sheet looked always like this. I wonder if maybe it has been improperly stored starting by 1961, like going through humid - dry, cold - hot cycles. -- Victor Manta, PWO, AIJP ---------------------------------------------------------------------------- Philatelic Webmasters Organization: http://pwmo.org/ Art on Stamps: http://artonstamps.org/ Romania by Stamps: http://marci-postale.com/ Communism on Stamps: http://reds-on.postalstamps.biz/ Spanish North Africa: http://www.sna-on.postalstamps.biz/ ---------------------------------------------------------------------------- |
#9
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Q: The Condition of this S/S?
On 9/14/2013 11:56 PM, Victor Manta wrote:
"Terry Reedy" wrote in message ... On 9/14/2013 2:36 PM, Victor Manta wrote: How would you describe the condition of this S/S? Perhaps lightly wrinkled. How would you grade its quality? I understand 'grade' to mostly refer to centering, of single stamps. That is not so much an issue for SS, but this one is well centered. http://www.artonstamps.org/topicals/...sheet-face.pdf http://www.artonstamps.org/topicals/...sheet-back.pdf Would someone also explain what causes such flows. Do you mean real flaws? (if so, which? I am not sure I see any other than some minor curl and wrinkle) or apparent flaws from the scan shadow? For the latter, a scanner has to have the light offset from the sensors, (and the sensors shielded from the light). The scanner used here seems to have sensors pointing straight up with light hitting as a noticeable angle. Did you have the lid down on the scanner, to flatten the sheet? Terry Note about the scans: The gray band on the top of the image of the back is a shadow that doesn't really appear on the S/S. The same applies to the gray shadows that appear on the indentations (saliencies?) on both faces and certainly highlight (by amplifying) the flaws. Thank you, Terry! Yes, the lid of the scanner was down and therefore the sheet was flattened. Here is what I found a few hours ago: "Instances where the gum can affect the numerical grade or be mentioned in the opinion mostly emanate from the actual process of the gum drying after being laid down at the time of application. As the gum dries after this application, several things may occur, most of which are considered minor faults: 1.Gum Bends – light bends in the gum but no crease in the paper. 2.Gum Creases – bends in the gum that actually cause a crease or pucker in the paper in the affected area." http://www.stampauthentication.com/Grading.html Considering this quote, and the fact that I see many bends on the face of the S/S too, I'm inclined to believe that: - These faults in the gum, eventually leading to creases in the paper itself, affect the grading - The important number of these flaws, many of them visible with the naked eye on both faces, should drive the grading quite low - Even if the scanning process brings some visual distortions (or enhancements) of the flaws, its result point us correctly to the flaws themselves and make them better visible on the scans. I'll be glad if somebody proves me wrong, because I'm in possession of this S/S :-) As I understand it from the quotation above, the flaws come from the improper drying of the gum during the fabrication, which means that this sheet looked always like this. I wonder if maybe it has been improperly stored starting by 1961, like going through humid - dry, cold - hot cycles. It is possible that you would be better off soaking off the gum ;-) |
#10
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Q: The Condition of this S/S?
"Terry Reedy" wrote in message
... On 9/14/2013 11:56 PM, Victor Manta wrote: "Terry Reedy" wrote in message ... On 9/14/2013 2:36 PM, Victor Manta wrote: How would you describe the condition of this S/S? Perhaps lightly wrinkled. How would you grade its quality? I understand 'grade' to mostly refer to centering, of single stamps. That is not so much an issue for SS, but this one is well centered. http://www.artonstamps.org/topicals/...sheet-face.pdf http://www.artonstamps.org/topicals/...sheet-back.pdf Would someone also explain what causes such flows. Do you mean real flaws? (if so, which? I am not sure I see any other than some minor curl and wrinkle) or apparent flaws from the scan shadow? For the latter, a scanner has to have the light offset from the sensors, (and the sensors shielded from the light). The scanner used here seems to have sensors pointing straight up with light hitting as a noticeable angle. Did you have the lid down on the scanner, to flatten the sheet? Terry Note about the scans: The gray band on the top of the image of the back is a shadow that doesn't really appear on the S/S. The same applies to the gray shadows that appear on the indentations (saliencies?) on both faces and certainly highlight (by amplifying) the flaws. Thank you, Terry! Yes, the lid of the scanner was down and therefore the sheet was flattened. Here is what I found a few hours ago: "Instances where the gum can affect the numerical grade or be mentioned in the opinion mostly emanate from the actual process of the gum drying after being laid down at the time of application. As the gum dries after this application, several things may occur, most of which are considered minor faults: 1.Gum Bends – light bends in the gum but no crease in the paper. 2.Gum Creases – bends in the gum that actually cause a crease or pucker in the paper in the affected area." http://www.stampauthentication.com/Grading.html Considering this quote, and the fact that I see many bends on the face of the S/S too, I'm inclined to believe that: - These faults in the gum, eventually leading to creases in the paper itself, affect the grading - The important number of these flaws, many of them visible with the naked eye on both faces, should drive the grading quite low - Even if the scanning process brings some visual distortions (or enhancements) of the flaws, its result point us correctly to the flaws themselves and make them better visible on the scans. I'll be glad if somebody proves me wrong, because I'm in possession of this S/S :-) As I understand it from the quotation above, the flaws come from the improper drying of the gum during the fabrication, which means that this sheet looked always like this. I wonder if maybe it has been improperly stored starting by 1961, like going through humid - dry, cold - hot cycles. It is possible that you would be better off soaking off the gum ;-) As you know it, this was actually done with some valuable classical stamps, after they passed the age of 40 - 50 years, btw the same as that of my s/s. The difference between these cases is that their respective values are in a ratio of at least two orders of magnitude. Anyway, good luck to those who'll try soaking off the gum of such large pieces of paper! :-) -- Victor Manta, PWO, AIJP ---------------------------------------------------------------------------- Philatelic Webmasters Organization: http://pwmo.org/ Art on Stamps: http://artonstamps.org/ Romania by Stamps: http://marci-postale.com/ Communism on Stamps: http://reds-on.postalstamps.biz/ Spanish North Africa: http://www.sna-on.postalstamps.biz/ ---------------------------------------------------------------------------- |
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