This variation chambered for .45 ACP and has Russian version of Anglo Zakazivat" stamped on frame. About 51,000 of these blued pistols manufactured in 1915-1916. Found between serial numbers C21000 and C89000. Rarely encountered today, but a few have recently been imported and advertised. One should be extremely cautious and verify authenticity if contemplating a purchase, as fakes have been noted. Despite market uncertainties, demand for original pistols is high. (Re-blue=Fair/Poor)