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Source:
Colnect
Issued by:
Spain
Function:
postage
Date:
10/1
/
1920
Issue:
7th UPU Congress
Denom:
50c
Color:
bright blue & black
Design:
Madrid Post Office
Watermark:
unwmk
Perf:
14
Catalog value:
Prev:
40c rose&blk
Next:
1p car&blk
External links:
Colnect 190435..ongress_Madrid