German Post Office in Turkish Empire. 3pf+10pf+20pf+25pf+50pf. Duetsches Reich 1875/80 issue, cancelled with "KAISERL. DEUTSCH P.A CONSTANTINOPEL". 3pf. Signed by R.Steuer B.P.D. (Mi. V31+V33/V36 - 1550 euros)
German Post Office in Turkish Empire. 10gr. grey cancelled "Constanti/nopel/27.9.72" in black manuscript. Small thin at top. Certificate by B.P.A. (2003). (Mi.NV25 - 3000 euros).