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Source:
Colnect
Issued by:
Panama
Function:
airmail
Date:
3/1
/
1937
Issue:
1937 air UPU
Denom:
5c
Color:
dark blue
Design:
Watermark:
unwmk
Perf:
Catalog value:
Prev:
12/1/1936 1b grayblk issue=4th Spanish-American Postal Congress
Next:
10c redorg
External links:
Colnect 654426..Congress_Issue
Record of changes
