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Source:
Colnect
Issued by:
Monaco
Function:
postage due
Date:
1918
Denom:
20c
Overprint:
Ovpt color:
black
On:
1910 10c
Color:
Design:
Prince Albert I
(1910)
Watermark:
unwmk
Perf:
Catalog value:
Prev:
1910 30c
Next:
40c on=1910-30c
External links:
Colnect 34753-..l_order_stamps
