The Webley-Fosbery was meant as a counter-point to the early semi-automatic pistols then emerging on the market, providing the large-bore firepower and relative mechanical simplicity of a revolver with the smooth single-action operation of an automatic, while also providing a middle point between the single action precision of a Single Action Army and the engagement speed of an Adams or Webley double action. While mechanically novel, the tide of history was on the side of the semi-autos, with Browning's designs in particular able to scratch the firepower itch, and the older revolver patterns holding their respective niches. Approximately 1,000 Model 1901 revolvers were made, which integrated features eliminated from later production like additional fluting on the cylinder and a throw lever style cylinder catch patterned after Webley's then-military standard double action revolvers. The left side of the top strap is marked "WEBLEY FOSBERY AUTOMATIC, with "P.WEBLEY & SON LONDON & BIRMINGHAM" on the rib and commercial "tonnage" proofs on the left side of the barrel lug. The left side of the frame is marked with the "W&S" winged bullet logo followed by "455 CORDITE ONLY" and the right side is marked with the serial number. A safety lever is installed on the left side, with a brass "SAFE" panel on the left grip.

Very fine, with 80% of the original blue finish on the frame, showing a mixed brown and gray patina on the gripstraps, bright edge wear, and minor spotting and handling marks overall. The barrel and cylinder were refinished during period of usage, with most of the finish remaining. Some rust is present, concentrated under the grip panels. Grips are fine, with some scattered dings, dents and scuffs. The ejector is a bit sluggish, otherwise mechanically fine.