I have acquired a 1871 Colt Frontier Six Shooter.
COLT FRONTIER SIX SHOOTER PAT.SEPT.19.1871. JULY 2.72. JAN 19.75.
SN 142211. Colt web site has listed the year of manufracturing as 1891 .
The bore dia. is .430”. The barrel is 4.8” long. This gun has been used a lot.