细节
cover 6Kr. brown horizontal pair and 1Kr. light green (2) with small to large margins on 1869 buff envelope to Moscow, cancelled by double- ring "REGENSBURG 2/AUG./1869" d.s. with "FRANCO" h.s. adjacent, showing arrival c.d.s. on reverse. A fine and attractive franking to an unusual destination. Signed Pfenninger. M.20 + 14a. Photo