This 1878 DA by Colt is an extremely early production certainly first moth, as it is Serial No.228X. It has the first production style “Fat Grip”, found on early production. Later the grip size was reduced, why ? maybe little hands back then ? This 1978 was originally a 7-1/2 inch barrel, however “in the day” it was reduced to 5-1/2 inches and professionally re-sighted. Bera in mind ! the holster is a Plug Bottom holster for a 5-1/2 inch Colt revolver. SO ! holster purchase and barrel reduction were of the same time, 1878 +. As we see it today, maybe about 15% of the original nickel plate finish is present, the balance is a soft non disturbed original light gray patina. The working mechanics are perfect, single and double action, NO mechanical issues ! ALL parts are original, and ALL factory applied markings are clear and present. WHAT makes this unique is the larger ” FAT GRIP”, and even more so !!! they are ORIGINAL IVORY to 1878!!