WERT
Departed
Rest in Peace
Posts: 1,062
What I collect: Canada and Provinces
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Post by WERT on Jan 4, 2020 16:34:40 GMT
The O.H.M.S.(On Her Majesty's Service) perfin process was used by United Kingdom, Canada, Australia, etc. that have the same Monarch.
TYPE I - FOUR-HOLE OHMS First issue 1938 last issue 1949
TYPE II - FOUR-HOLE OHMS First issue 1942 last issue 1951
There were so many produced that the perforation machine took a beating. Below is an example of a strip of Scott 0270 stamps with progressive pin breaks. Robert
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