D M overprints

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

Fischer U1
Michel 1
Fischer U2
Michel 2
Fischer U3
Michel 3
Fischer U4
Michel 4

Fischer U5
Michel 5
Fischer U6
Michel 6
Fischer U7
Michel 7
Fischer U8
Michel 8

Fischer U9
Michel 9
Fischer U10
Michel 10
Fischer U11
Michel 11
Fischer U12
Michel 12

Fischer U13
Michel 13
Fischer U14
Michel 14

Translations

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