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All Forums Category: World Stamps and Covers Discussions Forum: Canadian Stamps and Covers

Scott # 792 - Colour Differences.

 
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Author Previous TopicReplies: 3 / Views: 1,365Next Topic  
wert
Rest in Peace
7742 Posts
Posted 03/10/2015   4:03 pm  Show Profile Bookmark this topic Add wert to your friends list Get a Link to this Message
Hi guys..Take a look at these two scott #792's and look at the colour difference..Took my colour analysing software so you can really see the difference...Took my sample directly above the last "A" in Canada to be accurate...Printers must be colour blind.
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area66
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2013 Posts
Posted 03/10/2015   4:30 pm  Show Profile Bookmark this reply Add area66 to your friends list  Get a Link to this Reply
Those stamps are 32 years old, they may just have change color
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watermark
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United States
725 Posts
Posted 03/10/2015   4:58 pm  Show Profile Bookmark this reply Add watermark to your friends list  Get a Link to this Reply
The stamp was printed on two different papers. Plate 1 was Abitibi-Price paper and plate 2 was on Harrison paper. Abitibi-Price paper has clear gum and Harrison blue-green tinged gum. If used Harrison paper has horizontal "lines" when viewed against a dark background. I think the inks also reacted differently on the papers causing different shades if my memory serves me well.
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Edited by watermark - 03/10/2015 5:00 pm
jarnick
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692 Posts
Posted 03/10/2015   5:22 pm  Show Profile Bookmark this reply Add jarnick to your friends list  Get a Link to this Reply
It is very difficult to determine shade differences on used stamps. The shade may be altered by the paper to which the stamp was affixed, the purity of the water it was soaked, a detergent or other chemical present in soaking, etc.
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  Previous TopicReplies: 3 / Views: 1,365Next Topic  
All Forums Category: World Stamps and Covers Discussions Forum: Canadian Stamps and Covers
 
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