German Occ. of Estland.1941. Otepää, 20+20 k. black/blue, perf. MIXED FRANKING on cover with 3 copies Eesti Post, 3 k. orange and Russia, 1 k. orange-brown. Totally 30 kop. covering the normal inland rate. Cancelled OTEPÄÄ 4.VIII.41, sent to Tartu. Very rare cover in beautiful condition. Signed Keiler BPP [ ✉ ]