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Stamp Perforations Particular Emphasis On Canadian Stamps

 
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Pillar Of The Community
3860 Posts
Posted 08/30/2015   09:49 am  Show Profile Bookmark this topic Add jogil to your friends list Get a Link to this Message
Has anyone read the following BNAPS publication book?:

Stamp Perforations with Particular Emphasis on Canadian Stamps

by Richard A. Johnson
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Rest in Peace
7742 Posts
Posted 08/30/2015   11:13 am  Show Profile Bookmark this reply Add wert to your friends list  Get a Link to this Reply
jogil...Got a link for the people out there..?

Robert
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Valued Member
Canada
276 Posts
Posted 08/30/2015   12:01 pm  Show Profile Bookmark this reply Add EasyOne to your friends list  Get a Link to this Reply
Here's the link to the publication

http://www.bnaps.org/books/bookdeta...hp?bookid=58
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Pillar Of The Community
3860 Posts
Posted 08/30/2015   12:03 pm  Show Profile Bookmark this reply Add jogil to your friends list  Get a Link to this Reply
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Pillar Of The Community
3860 Posts
Posted 09/01/2015   08:19 am  Show Profile Bookmark this reply Add jogil to your friends list  Get a Link to this Reply
BNAPS members get a 40% discount off of the retail price for BNAPS books.
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Edited by jogil - 09/01/2015 08:19 am
Pillar Of The Community
3860 Posts
Posted 10/04/2015   10:28 am  Show Profile Bookmark this reply Add jogil to your friends list  Get a Link to this Reply
A very interesting and early perforating machine patent is written about in this publication. The patent is as follows: https://www.google.com/patents/US32370
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