5 Piaster on 1 Mark, dark carmine red, German Post in Turkey, with printing error I: "P" of "Piaster" flattened at the top, postmarked "CONSTANTINOPEL 24. 7. 08 5-6 N DEUTSCHE POST", good condition, small thin spot, short perforation at the top, unsigned, photographic finding by Manfred Wiegand BPP (2025), Michel 1000.-