GBPS Discussion Boards
http://www.gbps.org.uk/boards/

Phosphor graphite imprimatur
http://www.gbps.org.uk/boards/viewtopic.php?f=32&t=1842
Page 1 of 1

Author:  l2ggy [ Tue Feb 22, 2022 11:55 am ]
Post subject:  Phosphor graphite imprimatur

I am looking for information regarding imprimaturs drawn from the 1959 wilding phosphor graphite issue. Were multiple sheets drawn from the print run or only a single sheet examination and subsequently retained by the Post Office/ The Postal Museum? Thank you
Colin Davies

Page 1 of 1 UTC [ DST ]
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/