Colt Bisley Model Single Action Revolver.
Serial no. 270374 [frame, triggerguard and butt], .32 W.C.F. caliber, 4 3/4-inch barrel with fixed front blade sight and frame notch rear sight. Blued finish. Two-line, three-date patent. Checkered hard rubber factory grips, with carved Rampant Colt to each panel. Manufactured in 1905. From The Estate of Ronald Martin.
Condition: Good. Finish primarily a mottled grey patina with noticeable wear and patches of pitting. Scattered scuffs and dings present to grips. Action good. Lightly pitted bore.