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Germany Michel #110 Color

 
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Author Replies: 11 / Views: 254Next Topic  
Valued Member

United States
127 Posts
Posted Yesterday   3:40 pm  Show Profile Bookmark this topic Add igopp to your friends list Get a Link to this Message
I received another ebay purchase and found this strange-looking stamp in it. So far, I haven't been able to find any explanation for this unusual color.
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Bedrock Of The Community
12700 Posts
Posted Yesterday   4:44 pm  Show Profile Bookmark this reply Add rogdcam to your friends list  Get a Link to this Reply
It is badly faded (damaged).
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Valued Member
United States
72 Posts
Posted Yesterday   4:50 pm  Show Profile Bookmark this reply Add olddutch2 to your friends list  Get a Link to this Reply
Why is it grey?
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Valued Member
United States
127 Posts
Posted Yesterday   5:24 pm  Show Profile Bookmark this reply Add igopp to your friends list  Get a Link to this Reply
rogdcam - So, are you saying that the purple ink somehow completely faded, while the red ink in the center was completely unaffected?
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Bedrock Of The Community
12700 Posts
Posted Yesterday   8:06 pm  Show Profile Bookmark this reply Add rogdcam to your friends list  Get a Link to this Reply
Yes, different colors can degrade differently and violets are notorious for being affected by environmental conditions.
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Pillar Of The Community
Canada
2028 Posts
Posted Yesterday   8:27 pm  Show Profile Bookmark this reply Add Just_fella to your friends list  Get a Link to this Reply
I know nothing of these stamps, quick look.
The 1 in 1919.
the A in national.
Couple other spots, could be normal for these?
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Pillar Of The Community
United States
1025 Posts
Posted Yesterday   10:25 pm  Show Profile Bookmark this reply Add billsey to your friends list  Get a Link to this Reply
It looks to me like the gray version has been chemically altered, not just UV damage to the pigments.
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Valued Member
United States
127 Posts
Posted Today  3 Hrs 33 Min ago  Show Profile Bookmark this reply Add igopp to your friends list  Get a Link to this Reply
I also think that the gray color is too uniform, and it seems unlikely that it is simply the result of UV exposure. On the other hand, how would it be possible to discolor only a specific area of the stamp's surface without affecting the surrounding areas?
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Valued Member
United Kingdom
362 Posts
Posted Today  2 Hrs 0 Min ago  Show Profile Bookmark this reply Add Flightle_Bee to your friends list  Get a Link to this Reply
Aniline purple degrades to dull gray under UV.



This is a dress dyed with Perkin's mauve (aniline purple) in the 1860s (source Science Museum, London) which has faded to grey.

That's assuming the ink's mauve. It appears that other purple and violet dyes also degrade, in bleach or in alkaline solutions, so maybe the stamp was washed in something.
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Valued Member
Learn More...
United Kingdom
224 Posts
Posted Today  1 Hr 56 Min ago  Show Profile Bookmark this reply Add pjr to your friends list  Get a Link to this Reply
It could be prolonged exposure to sunlight or brief exposure to detergent.

It's hard to tell on a screen, but I think the centre is affected too. The "grey" stamp has less orange in it.
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Valued Member
United States
127 Posts
Posted Today  1 Hr 19 Min ago  Show Profile Bookmark this reply Add igopp to your friends list  Get a Link to this Reply
I don't think the orange color has been affected at all. In the image, the orange color from two stamps is shown side by side (the normal stamp is on the left).

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Bedrock Of The Community
12700 Posts
Posted Today  40 Min ago  Show Profile Bookmark this reply Add rogdcam to your friends list  Get a Link to this Reply

Quote:
On the other hand, how would it be possible to discolor only a specific area of the stamp's surface without affecting the surrounding areas?


Because, as I already said, the inks are composed of different materials. Violet is different than green is different from red is different from orange.....

You seem determined to have someone else validate what you want to hear rather than an actual real answer. Do you think it is an error? Is this where you are going? It's not an error with an associated premium price. It's a damaged stamp.
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