The prefix letter K to your serial number indicate that your Marlin model 336SC (sporting carbine) was made in the year 1953. Without a detailed description of your Marlin rifle's overall condition, it is difficult to assess a value. As a general rule these Marlin rifles will bring between $250 and $400 on today's market depending on overall condition being good or better with a good bore, and wood.

Your Glenfield model 75C will go for between 50-75 dollars on today's market.

Your rifle was made in the year 1996,with the serial number that you have supplied.

Your serial number provided is not complete.Please provide the whole number on the tang or receiver to receive an answer to your question.

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.

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.

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.

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.

If your Marlin model 57 levermatic is showing between 80%-95% of it,s original finish,it would be worth between 200-300 dollars.

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).