Afghanistan, 1916-1918 (ca.) Bokhara Agency cover. (Mazar-i-Sharif) to Peshawar franked with 2ab yellow paying registration rate. Canceled with oval Bokhara Agency postmark with rectangular Bokhara registration postmark alongside; Kabul (?) transit; Peshawar receiving postmark, Very Fine, Tchilingirian recorded only 2 covers with these postmarks, only 6 or 8 examples are known. Estimate  $300 - 400. $0 (Image)