Made in 1878 located at Colt Mfg Co. in Hartford,CT
Need serial number to answer. Look it up at proofhouse.com
Colt lightning .22 rifle with that serial number was produced in 1903
No way to answer without the caliber.
1902 for the .22rf lightning rifle and 1893 for .32,.38 & .44 cal lightning rifle.
1884-1887 depending on exact model
Based on proofhouse.com with a serial number that low, it was made in the first year of production in 1884.
what is the letter preceding the number 26868?
You will have to call Colt