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Source: Wikimedia Commons
Issued by:
Russia
Function:
postage
Date:
7
/
1945
Issue:
Popov invention of radio 50th
Denom:
30k
Color:
violet blue
Design:
Popov
&
radio
& schematic
Watermark:
unwmk
Perf:
12
Catalog value:
In collections:
used
(Stan Shebs)
Prev:
6/1945 1r brnblk issue=Battle of Moscow 3rd d=air battle
Next:
60k dkred
External links:
Colnect 283617..iet_Union_USSR