Both made 1863. Personalised grips with Silver Filligrain inserts, Silver One Dollars and Copper triangular escutcheons with Initials and one stated PECOS 1872. Probably refering to Pecos County Texas which was an Army outpost. SN113454 is all matching numbers, SN 139801 all matching numbers except for wedge. Unique to find 2 Colt's being a pair since 1872.