.36 caliber. 7.75" octagonal barrel. SN: 16266. Blued finish, brass triggerguard, two-piece smooth walnut grips. Single action percussion revolver with smooth round six-chambered cylinder, frame notch rear sight and brass post front sight. Top barrel flat marked in two lines: E WHITNEY/NEW HAVEN. The matching serial number 16266 is found under barrel, on the loading lever, on the rear face of cylinder and inside both grips. No serial number is present on the frame. Barrel and frame with the single sub-inspection mark B, attributed to Arsenal Sub-Inspector Samuel T Bugbee and the weak script STB cartouche of Bugbee is present on the left grip. While not listed in the Springfield Research Service Serial Number books, a number of Whitney Navy revolvers in the 16,XXX range are listed, with most having been issued to the 19th Pennsylvania Cavalry and a few having been issued to the 21st Pennsylvania Cavalry. A well used, but solid example of a scarce martially marked Whitney Navy Revolver.