GERMAN EMPIRE
OFFICIAL POSTCARD
MICHEL SFP2
SONDERFLUGPOSTKARTEN
5Pf + 1 Mark
Issued: 1912. Special postcards to raise funds for the national flight donation. the value stamp is a Germania 5Pf green, and on the left is a second value stamp-like vignette with two coats of arms (Frankfurt and Wiesbaden), indicating the amount of the donation.
SFP2