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#1
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Chalk surface paper
How can you tell if a stamp is chalk surfaced or not?
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#2
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(RCSD) Chalk surface paper
On Sep 9, 9:55 am, "news.knology.net" wrote:
How can you tell if a stamp is chalk surfaced or not? Chalky paper, used especially on British stamps, is easy to identify. Chalk-surfaced stamps when rubbed with silver will leave a black mark on them. Be careful when testing these and just touch a small corner or part of the stamp. You can sort out some of the modern ordinary & chalky paper stamp issues with an Ultra-Violet lamp. Blair |
#3
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(RCSD) Chalk surface paper
Another way to tell chalk surfaced paper is to hold the stamp to the
outside of your (dry) lip - chalk surfaced paper will feel noticeably colder & smoother than ordinary paper. Regards, Nick "Blair (TC)" wrote in news:1189347815.283579.138440 @d55g2000hsg.googlegroups.com: On Sep 9, 9:55 am, "news.knology.net" wrote: How can you tell if a stamp is chalk surfaced or not? Chalky paper, used especially on British stamps, is easy to identify. Chalk-surfaced stamps when rubbed with silver will leave a black mark on them. Be careful when testing these and just touch a small corner or part of the stamp. You can sort out some of the modern ordinary & chalky paper stamp issues with an Ultra-Violet lamp. Blair |
#4
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(RCSD) Chalk surface paper
"Blair (TC)" wrote in message oups.com... On Sep 9, 9:55 am, "news.knology.net" wrote: How can you tell if a stamp is chalk surfaced or not? Chalky paper, used especially on British stamps, is easy to identify. Chalk-surfaced stamps when rubbed with silver will leave a black mark on them. Be careful when testing these and just touch a small corner or part of the stamp. You can sort out some of the modern ordinary & chalky paper stamp issues with an Ultra-Violet lamp. Blair What Blair says is perfectly true but you need to know whether the paper you are testing is indeed coated with chalk; some papers are coated with other materials, such as china clay. In addition, all coated papers need to be distinguished from those where the filler is added to the pulp mix. Your catalogue should tell you what the papers are for the stamps you are interested in. Douglas |
#5
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(RCSD) Chalk surface paper
Douglas,
so isn't the real problem to get coated paper distinguished from non-coated papers??? And in such a way that the method will be non-destructive? Using silver sounds like barbarism. I'm not sure whether I can count on my catalogues as to what type of papers are involved. Maybe in the early 20th century philatelists had an obsession for chalky paper [not just Anglosaxon countries but also Portugal, Switzerland] but later on - and certainly in the last few decennia - hardly anybody cares for the paper itself. They may want to distinguish types of phosphor and the like, but not the base paper or the immediate coatings underneath the printing inks.... groetjes, Rein Op Sun, 09 Sep 2007 18:35:25 +0200 schreef Douglas Myall : "Blair (TC)" wrote in message oups.com... On Sep 9, 9:55 am, "news.knology.net" wrote: How can you tell if a stamp is chalk surfaced or not? Chalky paper, used especially on British stamps, is easy to identify. Chalk-surfaced stamps when rubbed with silver will leave a black mark on them. Be careful when testing these and just touch a small corner or part of the stamp. You can sort out some of the modern ordinary & chalky paper stamp issues with an Ultra-Violet lamp. Blair What Blair says is perfectly true but you need to know whether the paper you are testing is indeed coated with chalk; some papers are coated with other materials, such as china clay. In addition, all coated papers need to be distinguished from those where the filler is added to the pulp mix. Your catalogue should tell you what the papers are for the stamps you are interested in. Douglas -- Gemaakt met Opera's revolutionaire e-mailprogramma: http://www.opera.com/mail/ |
#6
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(RCSD) Chalk surface paper
On Sun, 09 Sep 2007 20:08:43 +0200, Rein wrote:
Douglas, so isn't the real problem to get coated paper distinguished from non-coated papers??? And in such a way that the method will be non-destructive? Using silver sounds like barbarism. I'm not sure whether I can count on my catalogues as to what type of papers are involved. Maybe in the early 20th century philatelists had an obsession for chalky paper [not just Anglosaxon countries but also Portugal, Switzerland] but later on - and certainly in the last few decennia - hardly anybody cares for the paper itself. They may want to distinguish types of phosphor and the like, but not the base paper or the immediate coatings underneath the printing inks.... Except, maybe for those WEIRDO Belgian RR papers. :^) White paper, phosphor, polyvalent, blah, blah, blah... |
#7
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(RCSD) Chalk surface paper
On Sun, 09 Sep 2007 12:08:57 -0700, Sir F. A. Rien
wrote: Really ... "They may want to distinguish types of phosphor and the like, but not the base paper or the immediate coatings underneath the printing inks...." ??? Chalk surface is a -=major=- distinction in GB Edwardian period and continues through some George. Also, within the Commonwealth. |
#8
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Chalk surface paper
I picked up this tip at a show this past weekend.
If the watermark is nearly impossible to see, even in fluid, then it's chalk surfaced paper. Jay Carrigan www.jaypx.com In article , says... "news.knology.net" found these unused words: How can you tell if a stamp is chalk surfaced or not? Lightly stroke with a piece of silver solder. Grey mark - surfaced. Do it on the edge or other area and it will clean off with an artist's gum eraser - NOT, NOT a pencil eraser !!! |
#9
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Chalk surface paper
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#10
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Chalk surface paper
If trying to identify using the uv lamp scan the back as well as the
front. If the back reacts too the flourescing agent has been added to the paper at the manufacturing stage and is not a coating. This does not mean that the stamp has/has not got a coating in addition - but will help in any process of elimination. Also check for a dated postmark. Any stamp with a postmark before the date of the new issue will be 99% certain to be the first issue ( unless the postmark date has been set in error). Regrettably the opposite cannot be said as stamps from the first issue can "hang around" for months after the date of the second. However stamps used years after the date of change are most likely to be the second issue. As in most of these matters comparison with a known example is the best guide. Also coated papers tend to have a "sharper" image than uncoated. As an alternative to dry lips use the very tip of your little finger ( this is very sensitive ) and a coated paper should feel smoother. Any further "old wives tales" on this subject would be welcome. Probably a combination of methods will elicit a high probability of correct indentification Malcolm |
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