Display results as threads Useful Searches. Marlin year of manufacture maybe determined from the following table of letter/numeral prefixs to the serial number: Date Prefix(s) 1946 C 1947 D 1948 E 1949 F 1950 G 1951 H. How do you tell what year a Marlin 336 30-30 was made? Discussion in 'Rifle Country' started. Can anyone help me with a manufacture date? Serial number is 24098XXX Any help is much. This is a discussion on Marlin 1894 Question within the Rifles forums, part of the Rifle & Shotgun Forum category Just picked up a Marlin 1894 in 44 Mag. Some people are under the belief that all one has to do is “subtract the first two digits of the serial number from 2000 and that is the year of manufacture”. There is some confusion about how Marlin Firearms used their serial numbers to ID the year of manufacture. Marlin rifle with serial number on top stock tang, behind hammer. Can anyone help me with a manufacture date? serial number is 24098XXX Any help is much. forums, part of the Rifle & Shotgun Forum category Just picked up a Marlin 1894 in 44 Mag. This is a discussion on Marlin 1894 Question within the Rifles Download mac os 10.12 ios.