Manufactured in 1907. One line Hartford address on top of the barrel and "(BISLEY MODEL)/COLT FRONTIER SIX SHOOTER" on the left side. The left side of the frame has the two line, three date patent marking followed by a circled Rampant Colt. The left side of the trigger guard has the Colt triangle proof and the number "6". Matching serial number on the frame, trigger guard and back strap with the assembly number "468" on the loading gate. Wide, low hammer spur with smooth wide trigger and characteristic "humpback" grip. Fitted with checkered hard rubber grips with the Rampant Colt in an oval at the top.