Fieldpost during Bondelzwarts uprising. FELD-POSTSTATION violet rubber handstamp with travelling postmark V of 30.1.04 (made from redundant Uhabis handstamp) on postcard with 5 Pfennig Imperial Yacht green. Rare provisional card with violet "Feld" rubber handstamp before Postkarte (larger type) and KEETMANSHOOP official seal. Perfect condition, certificate Czimmek BPP (1995). Illustrated Putzel handbook p. 135.