Austro-Hungarian Military Post 1917 KuK Feldpost - Emperor Karl I
From Stamps of the World
- Issue Dates: 1917
- Designed by:
- Printed by:'
- Print Process: Recess
- Perforations: 12½, 11½ & 11½x12½
- Catalogue N°s: Michel Österreichisch-ungarische Feldpost 53-72, Yvert Autriche-Hongrie 49-68.
Emperor Karl I. Label K u K Feldpost (for use by the Austria-Hungary Military post). Valid until end of war (?).
Many have been postmarked on remaining, unused pieces (Restbestände). Truly used stamps are of interest for history of WWI.