You will have to call Colt. Published sn data does not go that far.
Serail number and features
Subtract the first two digits of the serial number from 100 to determine year of manufacture: 100 - 19 = 1981.
i would be guessing that i dont know anything about the neo serail number
Die Entführung aus dem Serail was created in 1782.
ariels resail sailer serail
1975
No serail number = no answer.
The model number you have netered is invalid. Winchester serail numbers only run from 1 - 5103249. Once you figure out the proper number go here and they will tell you the date of manufacture: http://armscollectors.com/sn/winlookup.php
9083a1106268
You will have to call to find out.
Made in 1902.
Check the frame bit beneath the bottom bracket