Discussion - Member to Member Sales - Research Center
Discussion - Member to Member Sales - Research Center
In the Scott Cat. in the "Introduction" in various sections the stages of flat press printed stamps is discussed, in another section gum is discussed for flat press printed stamps, but Scott Cat. Introduction does not indicate at what stage the gum is applied.
Then I checked "The 19th Centry Postage Stamps of the United States Vol. #1" by Brookman 1947 edition, again the gum at what stage is applied to flat plate printed stamps is not discussed. (This book does go into detail with actual excellent pictures, how flat press printed stamps are printed.)
I'm asking the StampoRama members "Fractual" resources that explaines at what stage of flat press printed United Stamps stmps 1847-1914 is gum applied)?
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The APS has an excellent article on gumming. Does not specifically address Flat plate gumming, but does give references for further research.
"https://stamps.org/news/c/collecting-insights/cat/exploring-stamps/post/gum-basics"
Edit to add: "Gum has had a long relationship with printing on postage stamps. In the pre-1930 days, flat press printing meant that sheets of paper were fed into the press one by one and then the printed sheets were hung up to dry, gummed, and weighted at the corners so that as the gum contracted the stamp sheets they did not curl." Not my words, but copied. Appears gum was added after printing.
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10:56:03am
"Appears gum was added after printing."
So I guess that the images on the back would be under the gum and would then be visible on both used and mint stamps. That certainly makes sense! Thanks for the information, now we all know a lot more than we did before!
Edit: More thinking has been done. Were the printed sheets stacked before they were gummed or did they individually go straight from the printing process to the gumming process? It makes a difference as to how and when the ink transfer occurred!
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08:47:12am
I thought I knew, then I checked my resources to confirm it. My resources do not address at what stage gum is applied to flat press printed stamps (in my case United States Stamps 1847-1914).
In the Scott Cat. in the "Introduction" in various sections the stages of flat press printed stamps is discussed, in another section gum is discussed for flat press printed stamps, but Scott Cat. Introduction does not indicate at what stage the gum is applied.
Then I checked "The 19th Centry Postage Stamps of the United States Vol. #1" by Brookman 1947 edition, again the gum at what stage is applied to flat plate printed stamps is not discussed. (This book does go into detail with actual excellent pictures, how flat press printed stamps are printed.)
I'm asking the StampoRama members "Fractual" resources that explaines at what stage of flat press printed United Stamps stmps 1847-1914 is gum applied)?
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this post
re: Gum, When it is Applied to Flat Press Printed Stamps
The APS has an excellent article on gumming. Does not specifically address Flat plate gumming, but does give references for further research.
"https://stamps.org/news/c/collecting-insights/cat/exploring-stamps/post/gum-basics"
Edit to add: "Gum has had a long relationship with printing on postage stamps. In the pre-1930 days, flat press printing meant that sheets of paper were fed into the press one by one and then the printed sheets were hung up to dry, gummed, and weighted at the corners so that as the gum contracted the stamp sheets they did not curl." Not my words, but copied. Appears gum was added after printing.
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This is my diabetic cat OBI! I think, therefore I am - I think! Descartes, sort of!
08 Nov 2022
10:56:03am
re: Gum, When it is Applied to Flat Press Printed Stamps
"Appears gum was added after printing."
So I guess that the images on the back would be under the gum and would then be visible on both used and mint stamps. That certainly makes sense! Thanks for the information, now we all know a lot more than we did before!
Edit: More thinking has been done. Were the printed sheets stacked before they were gummed or did they individually go straight from the printing process to the gumming process? It makes a difference as to how and when the ink transfer occurred!
1 Member
likes this post.
Login to Like.