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Source:
Colnect
Issued by:
Czechoslovakia
Function:
airmail
Date:
1920
Issue:
1920 air imperf
Denom:
28k
Color:
Design:
Watermark:
unwmk
Perf:
Catalog value:
Prev:
24k
Next:
6/15/1922 50h issue=1922 air perf=13.75
External links:
Colnect 315325..echoslovak_Spa
