Information regarding event cancellation from Event cancellation from PRAHA 1

Postal office:	PRAHA 1
Cancellation color:	BLACK
Text on the stamp (first upper line):	PRAHA ** a
Text on the stamp (second upper line):
Text on the stamp (first lower line):
Text on the stamp (second lower line):	II.DĚLNICKÁ OLYMPIÁDA
Text translation:	II.WORKSHOP OLYMPIADA
Comment:
Offical period of usage:	1927-06-26/1927-07-07

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