If I understand your question correctly,you have a Marlin lever action rifle chambered in 38WCF(38-40).If that is the case,then you have a Marlin model 1889 rifle,that was made in the year 1892.
I have Marlin Model 336RC lever action I inherieted recently... Serial number I found was under the lever.
1893
50-175 USD
You will need to provide the serial number to your Marlin model 39 lever action .22cal rifle to get a date of production.
The Marlin lever action 38w, serial number 41436 is valued at $700 in excellent condition. It is valued at $500 in fair condition.
Cannot be answered without you providing serial number.
The letter U which is a prefix to your serial number is used to date the production of your Marlin lever action rifle.In this case the letter U indicates that your rifle was made by marlin in the time frame of 1960-august of 1961.
1960
1955
Contact Marlin by phone, give them your serial # and they can tell you when it was made and where.
With the serial number that you have supplied,your Marlin model 336 was made in the year 1982.
Your Marlin rifle was made in the year 1982,with the serial number that you have provided.