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All Forums Category: World Stamps and Covers Discussions Forum: World Modern Stamps Mint and Used

"Extra Bits" On Newer Machins?

 
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Author Previous TopicReplies: 3 / Views: 1,836Next Topic  
butterfly
Valued Member
United States
427 Posts
Posted 03/25/2011   10:52 am  Show Profile Bookmark this topic Add butterfly to your friends list Get a Link to this Message
I have been running across Machins with little gray "bits" seemingly attached to them.
Could someone tell me if they wash off or can be scraped off and where they come from?

Thanks in advance!
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Edited by butterfly - 03/25/2011 10:53 am

nitrolures
Pillar Of The Community
Canada
2277 Posts
Posted 03/25/2011   12:24 pm  Show Profile Bookmark this reply Add nitrolures to your friends list  Get a Link to this Reply
I've seen this on a few canadian stamps as well. My assumption was a phosphorus type cancel that could easily be detected but I may be wrong.
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mhc99
Pillar Of The Community
Canada
1227 Posts
Posted 03/25/2011   12:41 pm  Show Profile Bookmark this reply Add mhc99 to your friends list  Get a Link to this Reply
butterfly, these grey spots are explained in the following adminware.ca link (see item #6):

http://www.adminware.ca/machin/m_faq.htm
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Bujutsu
Pillar Of The Community
Canada
4648 Posts
Posted 03/25/2011   1:26 pm  Show Profile Bookmark this reply Add Bujutsu to your friends list  Get a Link to this Reply
I believe those marks are a form of 'security' marking (?)

Chimo

Bujutsu
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  Previous TopicReplies: 3 / Views: 1,836Next Topic  
All Forums Category: World Stamps and Covers Discussions Forum: World Modern Stamps Mint and Used
 
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