Discussion - Member to Member Sales - Research Center
Discussion - Member to Member Sales - Research Center
06:24:08pm
I have this plate block of US J99 and I have a 2012 Scott US Specialized Catalog. The listing for this stamp has two plate block of 4 mint values. I've seen this in the catalog for quite a few other stamps as well. Is this block worth $5 or $22.50 and what is the difference between the two? Does this difference apply to all of the listings with two "P# Block of 4" values?
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Hi Lisa,
In each case the first P# listing is for stamps with shiny gum and the second is for stamps with dull gum.
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The difference in value is because of the gum type. Your plate block has shiny gum (I know because of the plate number) so it is the lesser valued of the two.
The dull gum variety is the more expensive one. Plates 37876 and 37877 were used for shiny gum J99 stamps and they are also the only two plates associated with the dull gum variety.
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07:29:57pm
Thank you for your help. Now I'm curious....was the dull gum produced on purpose? And if so, why?
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Lisa,
Dull gum production was intentional. While I can't say with any certainty why dull (or dry) gum was introduced, this extract from a Linns' Refresher Course article may provide a clue:
"Interleaving was used in booklets until the 1970s, when the development of a synthetic dry or dull gum eliminated concerns about the stamp panes sticking together."
The entire article is at http://www.linns.com/howto/refresher/booklets_20000925/refreshercourse.aspx
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08:01:07am
Thank you for the info!
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It is during our darkest moments that we must focus to see the light. - Aristotle Onassis
27 Jan 2013
06:24:08pm
Hi all,
I have this plate block of US J99 and I have a 2012 Scott US Specialized Catalog. The listing for this stamp has two plate block of 4 mint values. I've seen this in the catalog for quite a few other stamps as well. Is this block worth $5 or $22.50 and what is the difference between the two? Does this difference apply to all of the listings with two "P# Block of 4" values?
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this post
re: Postage Due - How to read catalog
Hi Lisa,
In each case the first P# listing is for stamps with shiny gum and the second is for stamps with dull gum.
Login to Like
this post
re: Postage Due - How to read catalog
The difference in value is because of the gum type. Your plate block has shiny gum (I know because of the plate number) so it is the lesser valued of the two.
The dull gum variety is the more expensive one. Plates 37876 and 37877 were used for shiny gum J99 stamps and they are also the only two plates associated with the dull gum variety.
Login to Like
this post
It is during our darkest moments that we must focus to see the light. - Aristotle Onassis
27 Jan 2013
07:29:57pm
re: Postage Due - How to read catalog
Thank you for your help. Now I'm curious....was the dull gum produced on purpose? And if so, why?
Login to Like
this post
re: Postage Due - How to read catalog
Lisa,
Dull gum production was intentional. While I can't say with any certainty why dull (or dry) gum was introduced, this extract from a Linns' Refresher Course article may provide a clue:
"Interleaving was used in booklets until the 1970s, when the development of a synthetic dry or dull gum eliminated concerns about the stamp panes sticking together."
The entire article is at http://www.linns.com/howto/refresher/booklets_20000925/refreshercourse.aspx
Login to Like
this post
It is during our darkest moments that we must focus to see the light. - Aristotle Onassis
29 Jan 2013
08:01:07am
re: Postage Due - How to read catalog
Thank you for the info!
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this post