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Source:
Colnect
Issued by:
Brazil
Function:
postage
Date:
7/21
/
1967
Issue:
6th Brazilian Mathematical Congress
Denom:
5c
Color:
blue & black
Design:
Moebius strip
Watermark:
CORREIO*BRASIL*(5mm)
Perf:
11.5x11
Catalog value:
Prev:
7/12/1967 5c grn&blk issue=National 4-S Day 1967 perf=11.5
Next:
8/1/1967 5c sl issue=Piricicaba 200th d=fish (1967) perf=11.5
External links:
Colnect 263101..A7os_de_Caldas
Record of changes