A few years ago at VANPEX there was an exhibit based on the precisely measured thickness of a particular issue of stamps, and I don't recall which issue that was.
If paper thickness is at one end of a spectrum of collecting interests, then my interests are at the opposite end, but I had to admire the extreme scientific rigour with which the exhibitor pursued his interest. He used a micrometer to gauge paper thickness, and created elaborate charts showing his results. I recall that the judges' only criticism was that if he were to show the exhibit again, he might work on ways to make the exhibit more accessible and meaningful to viewers.
Bob
In the scan, it looks like they are all used and thereafter washed of gum so that the differenc should not involve the gum. Besides, if the self sticks were not devoid of gum, either they would all have stuck together and be useless, or with the seemingly much thicker backing paper included, the self stick pile would be twice as thick.
Yes they are clean used stamps in the bundleware. Sometimes we can forget to include the things we take for granted :).
Bobstamp. Interesting point for showing paper thickness of stamps in a real way for the viewer of a display is stamps in bundles. It would be very interesting if many different stamps were done this way to show paper thickness changes over the years for a display viewing.
You never know, it might inspire someone, and good luck to them if they do.
The image is of 5 x 100 stamp bundles high. The back row is the gummed stamp issue and the front row is the self adhesive stamp issue. All are in equal numbers.
It makes the thickness of the paper used on each issue really stand out! It is close to a 20% difference in thickness!
This difference in thickness of paper is the same with all the gummed and self adhesive issues that I have come across so far!
I believe the 55c era is thinner again. And so is the 60c era. No wonder we are having trouble taking the self adhesives off paper!
re: Paper Thickness of Stamps
A few years ago at VANPEX there was an exhibit based on the precisely measured thickness of a particular issue of stamps, and I don't recall which issue that was.
If paper thickness is at one end of a spectrum of collecting interests, then my interests are at the opposite end, but I had to admire the extreme scientific rigour with which the exhibitor pursued his interest. He used a micrometer to gauge paper thickness, and created elaborate charts showing his results. I recall that the judges' only criticism was that if he were to show the exhibit again, he might work on ways to make the exhibit more accessible and meaningful to viewers.
Bob
re: Paper Thickness of Stamps
In the scan, it looks like they are all used and thereafter washed of gum so that the differenc should not involve the gum. Besides, if the self sticks were not devoid of gum, either they would all have stuck together and be useless, or with the seemingly much thicker backing paper included, the self stick pile would be twice as thick.
re: Paper Thickness of Stamps
Yes they are clean used stamps in the bundleware. Sometimes we can forget to include the things we take for granted :).
Bobstamp. Interesting point for showing paper thickness of stamps in a real way for the viewer of a display is stamps in bundles. It would be very interesting if many different stamps were done this way to show paper thickness changes over the years for a display viewing.
You never know, it might inspire someone, and good luck to them if they do.