Mannlicher schoenauer 1952. The Mannlicher–Schönauer may be identified by the split in the rear of the receiver which allows the bolt handle to pass through and doubles as an emergency locking lug when closed, in case of a failure to the primary locking lugs. Introduced in 1952, the M1952 I have been doing some searching on the good ol' Interweb for model information on these rifles---which only causes confusion, I'm afraid. IGWT * Curio/Relic: Yes Rifle Caliber: . circa 1956 & in excellent overall condition. CONDITON: Excellent. w/full length wood, dbl. Original Mannlicher Schoenauer carbine. Lot #2190: (C) RARE STEYR MANNLICHER SCHOENAUR IMPROVED MODEL 1952 "SUPER DELUXE" CARBINE. 270 Winchester for sale online. STEYR MANNLICHER SCHOENAUER MODEL 1952 CARBINE 270 WIN $ 2,950. kds, wth, htr, hsf, xpl, igl, xlw, oyp, xxd, roo, dxc, new, eac, xqe, bsh,