Discussion - Member to Member Sales - Research Center
Discussion - Member to Member Sales - Research Center
3 sides look to be perf 11, but the top does not seem to be perf 11.
Thanks in advance...
Using my Sonic Imagery Labs Precision U.S. Specialty Multi-Gauge (Revision 5.22), it looks like the top is about 9.6 and the bottom is about 10.9
I would be interested in what others think...
Maybe a reperf to fake a 556b?
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Try using the Specialty Gauge for Bureau Issues, which should be on the same gauage your are using. You used the wrong gauage. U. S. Stamps are measured in thousands of an inch not MM which is the guage you used. There is a difference!
Let us know what you come up with?
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The problem in general when a stamp is labeled perf 11 it is not exactly perf 11. It is rounded from the actual gauge so one should use more precise measuring methods.
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"U. S. Stamps are measured in thousands of an inch not MM"
I was under the impression that the standard measurement of perforations,
here and everywhere else was the 2 cm. spacing or 20 mm.
BTW for those not familiar with the metric system, measures above the standard unit
are expressed with a capital letter and measures below the standard unit use an small letter.
So 1 Dm. will be ten times bigger that a meter and 1 dm ten times smaller than a meter.
This is the meter scale:
Mm. 10.000 m.
Km. 1.000 m.
Hm. 100 m.
Dm. 10 m.
m. basic unit
dm. .10 m.
cm. .100 m.
mm. .1000 m.
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Counting the peeks and valleys on the stamp you certainly have two different perforations.
Why? your guess is as good as mine.
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The standard perforation gauge is how many perforations in 2 centimeters. Most US collectors and dealers use this gauge and what is referenced in the Scott catalog. As stated these are not exact measurements but rounded. In most cases this is close enough.
There are specialist gauges for older US material that provide finer gauging to assist with the over simplification of using rounded perforation measurements. For example (made up), an issue identification may depend if it was perf 9.8 vs perf 10.2. as they could both be called perf 10.This was the case when some modern US were printing stamps different perforators.
Some details on perforations at Stamp Smarter.
https://stampsmarter.org/Learning/Manuf_ ...
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The top perfs look like an amateurish attempt to alter. No consistency at all and the linear left-right drop are out of place with the other 3 sides.
Does this stamp have a version with a straight edge on top? If so, I’d rest my case. If not, uh…
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Opinions on this stamp please.
3 sides look to be perf 11, but the top does not seem to be perf 11.
Thanks in advance...
Using my Sonic Imagery Labs Precision U.S. Specialty Multi-Gauge (Revision 5.22), it looks like the top is about 9.6 and the bottom is about 10.9
I would be interested in what others think...
Maybe a reperf to fake a 556b?
Login to Like
this post
09:59:21pm
re: USA Martha Washington Perf 11 on 3 sides Scott 556/556b ?
Try using the Specialty Gauge for Bureau Issues, which should be on the same gauage your are using. You used the wrong gauage. U. S. Stamps are measured in thousands of an inch not MM which is the guage you used. There is a difference!
Let us know what you come up with?
2 Members
like this post.
Login to Like.
re: USA Martha Washington Perf 11 on 3 sides Scott 556/556b ?
The problem in general when a stamp is labeled perf 11 it is not exactly perf 11. It is rounded from the actual gauge so one should use more precise measuring methods.
2 Members
like this post.
Login to Like.
re: USA Martha Washington Perf 11 on 3 sides Scott 556/556b ?
"U. S. Stamps are measured in thousands of an inch not MM"
I was under the impression that the standard measurement of perforations,
here and everywhere else was the 2 cm. spacing or 20 mm.
BTW for those not familiar with the metric system, measures above the standard unit
are expressed with a capital letter and measures below the standard unit use an small letter.
So 1 Dm. will be ten times bigger that a meter and 1 dm ten times smaller than a meter.
This is the meter scale:
Mm. 10.000 m.
Km. 1.000 m.
Hm. 100 m.
Dm. 10 m.
m. basic unit
dm. .10 m.
cm. .100 m.
mm. .1000 m.
Login to Like
this post
re: USA Martha Washington Perf 11 on 3 sides Scott 556/556b ?
Counting the peeks and valleys on the stamp you certainly have two different perforations.
Why? your guess is as good as mine.
1 Member
likes this post.
Login to Like.
re: USA Martha Washington Perf 11 on 3 sides Scott 556/556b ?
The standard perforation gauge is how many perforations in 2 centimeters. Most US collectors and dealers use this gauge and what is referenced in the Scott catalog. As stated these are not exact measurements but rounded. In most cases this is close enough.
There are specialist gauges for older US material that provide finer gauging to assist with the over simplification of using rounded perforation measurements. For example (made up), an issue identification may depend if it was perf 9.8 vs perf 10.2. as they could both be called perf 10.This was the case when some modern US were printing stamps different perforators.
Some details on perforations at Stamp Smarter.
https://stampsmarter.org/Learning/Manuf_ ...
Login to Like
this post
06:41:37am
re: USA Martha Washington Perf 11 on 3 sides Scott 556/556b ?
The top perfs look like an amateurish attempt to alter. No consistency at all and the linear left-right drop are out of place with the other 3 sides.
Does this stamp have a version with a straight edge on top? If so, I’d rest my case. If not, uh…
2 Members
like this post.
Login to Like.