Your Model 81 was halted in the year 2003.I would surmise that Marlin had a new model in the works at the time of the model 81 demise.
The Prefix letter L indicates that your Marlin model 336RC(regular carbine) was made in the year 1954.I also have a Marlin model 336RC in 32 win spl.that was made in the year 1950.I hope that yoou enjoy yours as much as I enjoy mine.
While I cannot give you a specific year of Manufacture,I can say that it was made after 1906.You can find the exact year of manufacture by contacting the Cody Firearms Museum in Cody WY.There is a 60 dollar fee for a letter stating the date of manufacture and when the rifle was shipped.
In the condition that you have stated,it would range in price from 150-250 dollars.
When was my Marlin Golden 39-!, SN: s12585 made?Your serial number letter prefix of S,indicates that your Marlin Golden was made between June 1958-1959.
Your Marlin model 90 shotgun was made from 1937-1958.The letter G prefix to your serial number indicates that yours was made in the year 1950.The value will range from 230-400 dollars,depending on gauge and if your shotgun has a single trigger(more) or double trigger(less).
If your Marlin model 57 levermatic is showing between 80%-95% of it,s original finish,it would be worth between 200-300 dollars.
By also providing the serial number in your question.
Try Numrich Gun Parts Corp.
Check to see if there is a letter ahead of the serial number.It should be their and then we can identify the year of production.
The model 882 serial number 99399049 must be a 1980's model.
The phone number of the Pauline And Jane Chilton Memorial Marlin Public Library is: 254-883-6602.
ableammo.com has them for $13