Information regarding event cancellation from Event cancellation from PRAHA 1

Postal office:	PRAHA 1
Cancellation color:	BLUE
Text on the stamp (first upper line):	PRAHA 1 **
Text on the stamp (second upper line):
Text on the stamp (first lower line):
Text on the stamp (second lower line):	I.CELOSTÁTNÍ SJEZD FILATELISTŮ
Text translation:	I. NATIONAL CONGRESS OF PHILATELISTS
Comment:
Offical period of usage:	1936-03-29

Dates the stamp is used
1936-03-29	Letter Cutting

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