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Source:
Colnect
Issued by:
Switzerland
Function:
postage due
Date:
1937
Issue:
1937 due
Denom:
20(c)
Color:
Design:
Watermark:
unwmk
Perf:
Catalog value:
Prev:
10c perf=11.5
Next:
40c perf=11.5
External links:
Colnect 24011-Figures-Numeral
