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#11
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Looking for a digital perf guage.
Rein schrieb:
Gerhard, does it tell you: 14.13 or does it round off to just 14.00 or 14.25??? groetjes, Rein Op Mon, 15 Jun 2009 11:59:10 +0200 schreef Gerhard Reichert : Hi Rein, the perfotronic 2 does round, here an description in english: http://www.mdcstamps.com/safe-perforation-gauges.htm kind regards Gerhard |
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#12
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Looking for a digital perf guage.
"Joshua McGee" Compare that to a $50 loupe, a $200 shortwave UV lamp, or the ridiculous $300 Italian leather valise I use to carry the above in. :^) No a bad idea really, on Sunday, taking off to the auction, I had my tongs in my breast pocket , as I went to smooth my jumper, I speared my hand. I was not a very happy camper. I now carry them in my over the sholder "man bag" which is becoming indispensible for boot sales and stamp auctions. |
#13
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Looking for a digital perf guage.
I took it as something different,
I thought you printed out the guage I could see no reference to layering a stamp over the guage. "Sir F. A. Rien" Interesting, says nothing about what ppi to use for the scanning of your image [stamp]. Perhaps covered in the pdf ??? Also probably doesn't take into account the 3% variation between different scanners in 'size' of scan. FWIW, that's almost the difference between Waterlow and De La Rue Castle printings! |
#14
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Looking for a digital perf guage.
On Tue, 16 Jun 2009 11:04:07 +0800, rodney wrote:
"Joshua McGee" Compare that to a $50 loupe, a $200 shortwave UV lamp, or the ridiculous $300 Italian leather valise I use to carry the above in. :^) No a bad idea really, on Sunday, taking off to the auction, I had my tongs in my breast pocket , as I went to smooth my jumper, I speared my hand. I was not a very happy camper. I now carry them in my over the sholder "man bag" which is becoming indispensible for boot sales and stamp auctions. I have speared myself on breast pocketed tongs, too. I've also ruined more than one good shirt that way. I've switched from "Lethal Point" (#901) to "Rolls Royce" (902) tongs since (after a momentary hand tremor put a hole in the *second* stamp), and that helps, but it is really the bag in question that has saved my shirts. The story behind the leather bag: there was, until quite recently, a chain of shops in the U.S. called Jay's Luggage. I'd call it a "haberdashery", but that's not quite right, and is problematic in its different meanings in U.S., U.K., and Australian English. A more descriptive name might be "the sort of store in which I'd most like to have a $10,000 shopping spree." It sold shaving kits, money clips, umbrellas, wallets, Montblanc and Cross pens, chess sets, humidors, and various and sundry "Fine Things in Life". The local branches have all closed, and I believe the chain is defunct as well, corresponding well with the economic downturn in which American gentlemen decided that $30 for an umbrella and $90 for a straight razor is "a bit absurd, really." In any case, the local shops started a clearance sale -- first 10% off, then 25%, then 50%, then, for the sparse remnants, 60% (if I recall correctly.) To be honest, I cannot remember whether the valise in question was $300 *before* or *after* the 60% discount, but as it was beautifully cut and stitched, in perfect, richly-oiled Italian leather, and (most importantly) had approximately three thousand small pockets in the interior, I simply *had* to have it as a bag to take to bourses, etc. Everything fit so nicely, though, that I ended up never taking my tongs or watermark tray out unless I was using them -- and then only long enough for the task at hand, at which point they were quickly re- ensconced. -- Joshua H. McGee San Marino, Los Angeles, California, USA, Earth Member: APS, ATA, ISWSC, MBPC Trade?: http://www.mcgees.org/stamp-offers/ |
#15
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Looking for a digital perf guage.
"jerry" Hi Rodney, There is a perforation gauge in a little hinged box. The gauge has 'pins' against which you place the stamp. I would be very interested Jerry, if you recall the name or find a link at a later date. Question We have a mint sheet of 30 John Paul Jones "I have just begun to fight" Can you please explain the difference between 11x12 perf, 11 perf, and 12 perf. Thank you very much for your time. John Eick Answer John, The stamps were originally meant to be perfed 12x12. On the first day of production, one of the two pin wheels in the perforating machine broke, and was replaced with an 11. Much later, the second 12 wheel was replaced with an 11, and the remaining stock of stamps were perfed 11x11. The result is very few copies perfed 12x12 (they catalog $3,500 each), most perfed 11x12 (very common), and the rest 11x11 (somewhat less common, valued almost twice that of the common variety). |
#16
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Looking for a digital perf guage.
On Tue, 16 Jun 2009 11:11:12 +0800, rodney wrote:
Also probably doesn't take into account the 3% variation between different scanners in 'size' of scan. I took it as something different, I thought you printed out the guage I could see no reference to layering a stamp over the guage. Are we certain there is no corresponding 3% variance in printer output? Since the size of a printed pixel or width of a printed line is quantized at the very least to the size of the nozzle/pin/whatever, I would be very surprised if there were no variation between printer models. -- Joshua H. McGee San Marino, Los Angeles, California, USA, Earth Member: APS, ATA, ISWSC, MBPC Trade?: http://www.mcgees.org/stamp-offers/ |
#17
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Looking for a digital perf guage.
Gerhard,
that is exactly why I do not want that gauge! If it can measure "elexctronically" then it should give me a not-rounded-off meaasure that I can easily round-off myself should I want to.... Rein Op Tue, 16 Jun 2009 01:00:14 +0200 schreef Gerhard Reichert : Rein schrieb: Gerhard, does it tell you: 14.13 or does it round off to just 14.00 or 14.25??? groetjes, Rein Op Mon, 15 Jun 2009 11:59:10 +0200 schreef Gerhard Reichert : Hi Rein, the perfotronic 2 does round, here an description in english: http://www.mdcstamps.com/safe-perforation-gauges.htm kind regards Gerhard -- Gemaakt met Opera's revolutionaire e-mailprogramma: http://www.opera.com/mail/ |
#18
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Looking for a digital perf guage.
On Tue, 16 Jun 2009 08:01:32 +0200, Rein wrote:
Gerhard, that is exactly why I do not want that gauge! If it can measure "elexctronically" then it should give me a not-rounded-off meaasure that I can easily round-off myself should I want to.... Surely every gauge rounds off to *something*. 3.14159265 is a roundoff of pi, for instance, albeit a pretty good one -- but it is still a roundoff, as will every decimal expression of it. When comparing gauges you need to have in mind the number of significant figures you require in the output. Do you need something that can discriminate between gauge 14.9 and 15? The teeth are spaced about 1.3 mm apart, so 0.1 of that means you would require a resolution of 0.13 mm. If you are trying to differentiate between gauge 10.9 and gauge 11.1 (much more common) the teeth are spaced about 1.8 mm apart, so you would need a resolution of 0.36 mm, which is easier, which means cheaper. If your perf gauge dealer tells you that his instrument is "accurate to 0.1 gauge in the range of gauges 8 through 15", that's important information. *Insist* on this sort of information. -- Joshua H. McGee San Marino, Los Angeles, California, USA, Earth Member: APS, ATA, ISWSC, MBPC Trade?: http://www.mcgees.org/stamp-offers/ |
#19
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Looking for a digital perf guage.
Dear sir,
Several hundreds of Dutch commemorative and definitive stamps used to have one side of 13.89 [36mm = 25 teeth = 13.888888888888888 etc.] and the other of 12.8 [25mm = 16 teeth = 12.800] The .25 increment gauge is as SAFE as can be with our Dutch stamps! In particular the used stamps will have l3.75:12.75 or 14:12.75 at random! groetjes, Rein Op Tue, 16 Jun 2009 16:03:26 +0200 schreef Sir F. A. Rien : Rein found these unused words: Gerhard, that is exactly why I do not want that gauge! If it can measure "elexctronically" then it should give me a not-rounded-off meaasure that I can easily round-off myself should I want to.... Rein "You torture yourself with inaccurate and therefore unsuitable measuring devices. The measuring points begin to "dance" before your eyes." This guy should try plating Penny Reds - the IMPERF group, not the ones with numbers in the side spandrels. "Displays in 1/4 increments, i.e. 14.25,14.5, 14.75, 15, etc." Yes, useless for the Waterlow vs De La Rue measurements ! Our Price $ 419.95 OUCH! G -- Gemaakt met Opera's revolutionaire e-mailprogramma: http://www.opera.com/mail/ |
#20
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Looking for a digital perf guage.
Dear Sir,
this must be the case for line perforations as with comb perforations the stamp size is basically constant. And if we are dealing with recess printed stamps the minute difference may be due to the paper [direction of the paper horizontal vs vertical] rather than to a difference in the perforation itself groetjes, Rein Op Wed, 17 Jun 2009 00:04:26 +0200 schreef Sir F. A. Rien : That's fine for dutch material with WIDE differences ... but GB material can be 11.8 vs 11.9 beteen printers so the "SAFE" .25 increment gauge is too 'safe' and will lead to errors. Rein found these unused words: Dear sir, Several hundreds of Dutch commemorative and definitive stamps used to have one side of 13.89 [36mm = 25 teeth = 13.888888888888888 etc.] and the other of 12.8 [25mm = 16 teeth = 12.800] The .25 increment gauge is as SAFE as can be with our Dutch stamps! In particular the used stamps will have l3.75:12.75 or 14:12.75 at random! groetjes, Rein Op Tue, 16 Jun 2009 16:03:26 +0200 schreef Sir F. A. Rien : Rein found these unused words: Gerhard, that is exactly why I do not want that gauge! If it can measure "elexctronically" then it should give me a not-rounded-off meaasure that I can easily round-off myself should I want to.... Rein "You torture yourself with inaccurate and therefore unsuitable measuring devices. The measuring points begin to "dance" before your eyes." This guy should try plating Penny Reds - the IMPERF group, not the ones with numbers in the side spandrels. "Displays in 1/4 increments, i.e. 14.25,14.5, 14.75, 15, etc." Yes, useless for the Waterlow vs De La Rue measurements ! Our Price $ 419.95 OUCH! G -- Gemaakt met Opera's revolutionaire e-mailprogramma: http://www.opera.com/mail/ |
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