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Source:
Colnect
Issued by:
Mexico
Function:
airmail
Date:
9/4
/
1956
Issue:
20th International Geological Congress
Denom:
50c
Color:
dark violet
Design:
Watermark:
MEX-MEX & eagle
Perf:
14
Catalog value:
Prev:
8/1/1956 5p grnbl issue=stamp 100th perf=11.5x11
Next:
12/1/1956 25c dkbl&gray issue=4th Inter-American Congress of Caribbean Tourism
External links:
Colnect 233609..City_20th_edit
Record of changes