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Source: Wikimedia Commons
Type of:
Russia
Function:
airmail
Date:
1924
Denom:
20k
Overprint:
20KOP
Ovpt color:
black
On:
1923 10r issue=1923 airmail unissued
Color:
carmine
Design:
Fokker F.
Watermark:
unwmk
Perf:
imperf
Inscription:
С.С.С.Р.
Print:
Photo
Unissued
Catalog value:
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15k redbrn ovpt=15KOP on=1923-1r-unissued unissued
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