D M overprints

Fischer U1-14 | Michel Dienstmarken 1-14 | Year of issue 1921

U1	U2	U3	U4

U5	U6	U7	U8

U9	U10	U11	U12

	U13	U14

Translations

D M is a German abbreviation for Dienstmarke, meaning "official stamp".
Freie Stadt Danzig is German for "Free City of Danzig".