Information regarding event cancellation from Event cancellation from OPAVA 1 / TROPPAU 1

Postal office:	OPAVA 1 / TROPPAU 1
Cancellation color:	RED
Text on the stamp (first upper line):	OPAVA 1-TROPPAU 1 ** b
Text on the stamp (second upper line):
Text on the stamp (first lower line):
Text on the stamp (second lower line):	1918-1928
Text translation:	10TH ANNIVERSARY OF THE FOUNDATION
Comment:
Offical period of usage:	1928-10-28

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