The caliber is .44-40 Winchester. The bores vary from around .427-.429", but usually towards the .427" size. Your serial number indicates a date of 1897 mfg. Values of antique firearms are based on condition, and any special features, or changes. I cann not estimate your gun's value without a set of good pictures or a first hand exam. email@example.com
Marlin Firearms is still in business. Check with them.(marlinfirearms.com)
Some Marlin Model 56 did not have a stamped serial number. The Firearms Control Act of 1968 required serial numbers to be stamped on weapons and since the Model 56 began production in 1955 it was not required. While Marlin did stamp some, they discontinued the practice saying it was non productive.
1972 What is the value?
The model 1936 was stamped as such for only the first year of production (released in 1937 I believe), and was re-branded as the Model 36 in the years that followed, so if you show the stamp "Model 1936", you are holding an original. This rifle is approx. 72 years old.
No, the Marlin Model 80 bolt action rimfire rifles were a very common produced rifle during the mid 20th century.
Serial number is stamped on the lower tang of the receiver. It is covered by the lever. Move the lever to see it.
if it's early production the bullet diameter is only .313. later production guns use a larger diameter bullet.
Serial numbers were required per a 1968 firearms act. Marlin .22's produced prior to this were not required to have serial numbers stamped on the weapon and marlin decided it was not productive to do so. Although they did stamp some earlier models they discontinued the practice. My Marlin model 56 made in 1960 also has no serial number.
Glenfield firearms were manufactured by Marlin (many were marked with both names). Cotter & Co was one of the retail hardware stores that sold Glenfield guns and some of them were stamped with the store name.
I'm assuming you have a Marlin model 1889, not 1887, as they never made a model 1887. The 1889 does have a patent date of 1887 on the barrel, so this is a common mistake. Any Marlin marked ".32W" on the barrel will normally be chambered for the .32-20 Win. cartridge.
Should be 1948.
The "L" prefix was used in the early 1930's. As for values, that can only be determined by inspection of your gun, or good pictures. firstname.lastname@example.org