Your serial number indicates that your Marlin model 336cs was made in the year 1995.
1983
I would say that your Marlin model 336cs(standard carbine) was made in 1983.
your marlin model 336 was made in 1985.
Your serial number indicates the year 1987.
1988
1995.
you would date it by the serial number on the rifle.
Yes the serial number is needed to get the year of production.
1988.
1996.
I can say that your Marlin model 336CS was made in the year 1984.I would look to Marlin,s own website to get any more info on your model of Marlin lever action rifle.