Post by kacyds on Oct 4, 2019 14:41:13 GMT -5
I am sure this would be an easy topical area to complete. In all the years I have been collecting, this is the first time I have seen a perforation gauge on a stamp.
Mexico Scott# C531 - Perforation Gauge
Issued May 7, 1976
Perf. 14
Photogravure Printing
Unwmk.
Issued for the Interphil 76 International Philatelic Exhibition, Philadelphia, PA, May 29 - June 6.
Mexico Scott# C531 - Perforation Gauge
Issued May 7, 1976
Perf. 14
Photogravure Printing
Unwmk.
Issued for the Interphil 76 International Philatelic Exhibition, Philadelphia, PA, May 29 - June 6.