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Source:
Colnect
Issued by:
Bulgaria
Function:
semipostal
Date:
7/10
/
1971
Issue:
Philatelic Congress 1971
Denom:
20+10s
Color:
multicolored
Design:
Loupe
&
tweezers
&
stamp
Watermark:
unwmk
Perf:
12.5
Catalog value:
Prev:
4/12/1971 40+20st issue=Astronaut Day 1971
Next:
11/10/1989 30+15st dt=children's games (1989) d=boy on skateboard (1989) perf=13x13.25
External links:
Colnect 409581..Congress_Sofia
Record of changes