50th Auction Anniversary Auction - Day 3

Türkei - Militär-Feldpost: 1917, 20 pa lilac, 20 pa carmine and 1 Pia on 1 ½ Pia carmine/black, each
1917, 20 pa lilac, 20 pa carmine and 1 Pia on 1 ½ Pia carmine/black, each with 'crescent & star" overprint, tied by bilingual cds MINISTÈRE DE LA GUERRE, 1.MAI 1917, mixed franking on registered cover to Braunschweig in Germany. On the frontside german transit registration label 'Vom Auslande über Bahnpost 5', on reverse manuscript sender 'Max Müller, Feldwetterzentrale Konstantinopel', ottoman censor seal, transit- and arrival mark (9.5.17). Scarce cover in very fine condition, ex collection Herry W. Schaefer.