338. Merwin Hulbert & Co. (Mfg. by Hopkins & Allen) – Early Open Top Large Frame Single Action “Army Revolver” – Chambered in “Calbre Winchester 1873” (44-40 Win.) Cal. – w/7” Round Barrel w/Integral Front Blade & Notch Rear Sights – Gray Finish – w/Factory Checkered Hard Rubber Birds Head Grips – w/Lanyard Hole – Several Thousands Estimated to Have Been Mfg. Between 1876-1880’s