A PRESENTATION .36 CALIBRE SIX-SHOT PERCUSSION COLT 61 NAVY REVOLVER, 7.5inch sighted round barrel stamped with the manufacturer's details, the cylinder stamped with the serial no. 887 and with good naval engagement cylinder scene, the brass trigger guard and backstrap stamped with matching serial no. and the inscription Francis Preston Blair Jr. ST. LOUIS, MO., two-piece wooden grips.