Ottoman Empire

P.T.T. (Post, Telegraph, Telephone) Overprints

25.3.1917   Overprinted 1876/1888 postage stamp issues Mi Color Perf. 12 Perf. 12:13¼ Perf. 13¼:12 Perf. 13¼ 512 50 Pa blue / yellow; opr. red + 513 2 Pia black / pale yellow-brown; opr. red + 519 25 Pia violet / pale violet; opr. black + 508 5 Pa black  pale yellow-olive; opr. red +,+ 510 10 Pa black / pale green; opr. red + 511 10 Pa green / pale green; opr. black + 514 2 Pia olive-brown / yellow-brown; opr. black + 516 5 Pia red-brown / pale brown; opr. black ++ 509 5 Pa black; opr. red +,+,+,+,+,Θ,Θ inv. opr. + 515 2 Pia orange / pale blue; opr. black +,+,+,Θ,Θ 517 5 Pia blue / pale blue; opr. red + 520 25 Pia olive-brown / pale olive-brown; opr. black + 518 5 Pia violet-brown / pale brown; opr. black +,+ 521 1 Pia black; opr. red +,+ 522 2 Pia black; opr. red +,+ Michel 508/522