if it's the colt single action model, then made about 1884..................................
value depends on overall condition.......................
The Colt 1878 frontier model with serial # 35369 was produced around 1896.
If this is the Colt 1878 Frontier model serial # 5100 , then it was produced around 1881.
According to this proofhouse website http://proofhouse.com/colt/index.html the model 1878 was only made up to 1905 with the final serial number being 51210. I don't know how much your gun is worth but with a serial number 117187 it is not a model 1878
made about 1881
Late 1878
about 1878
It tells the year of manufacture of a Colt.
The age and value of a colt .45 peacemaker serial 180356 are about 1900
if it is the 1878 hammer shotgun made about 1886
Impossible to value with only the serial number.
Made in 1878 located at Colt Mfg Co. in Hartford,CT
The value of a Colt 1878 with a 7.5-inch barrel, nickel plated, and a serial number of 26000 can vary depending on its condition and any accompanying documentation. In general, these revolvers can range in value from several hundred to several thousand dollars among collectors and enthusiasts. It is recommended to have the specific firearm appraised by a reputable gun dealer or appraiser for an accurate valuation.