Merwin Hulbert .38 caliber revolver, 80 mm round rifled barrel with half-moon front sight, marked on top "Merwin Hulbert & Co New York U.S.A. Pat Apr 17.77 June 15.80, Mar 14.82, Jan 9.83", five-chamber cylinder, rotary opening system, chocolate gutta percha grips, BE, No. 3424, 195 mm TL, USA 19th c., category D § e. Expert: Mr Hervé MATOUS