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Source:
Colnect
Sheet:
Issued by:
Poland
Function:
airmail semipostal
Date:
3/28
/
1957
Issue:
Polish Philatelic Exhibition 1957
Denom:
4z+2z
Color:
blue
Design:
abstract wing & letter
Watermark:
unwmk
Perf:
Catalog value:
Prev:
4z+2z imperf
Next:
5/18/1957 4Zł issue=7th National Philatelic Exhibition in Warsaw
Catalog numbers:
Sc CB1
External links:
Colnect 140392..tion_in_Warsaw
