German Empire 1920 Official Stamp (Württemberg Overprint)

German Empire · 1920 · 20 Pfennig

A green stamp featuring a central '20 Pfg' denomination within an oval frame, with 'Deutsches Reich' at the top and 'Dienstmarke' at the bottom. It bears a diagonal overprint of 'Deutsches Reich' across the design.

Issued in 1920, this official stamp is an overprinted former Württemberg definitive, re-validated for use across the entire German Empire. It reflects the post-WWI unification of postal services under the newly formed Weimar Republic.