|GBPS Discussion Boards
|use of phosphor stamps
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|Author:||jimusedcontrols [ Tue Aug 29, 2017 10:55 am ]|
|Post subject:||use of phosphor stamps|
I was wondering whether there is a definitive list available when different towns starting using phosphor stamps. Proper commercial usage can only be from areas where they were actually in use. There was a useful article by A.J. Barnes back in 1967 in Stamp Collecting which helps but I am not sure whether it is complete.
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