See the link below. You will need the serial number, including any letter prefix.
The Marlin model 24 pump action shotgun was produced by Marlin firearms company from 1908-1915.
Your marlin model 1893 was made by marlin firearms in 1894.
Your marlin 336sc(standard carbine) was made by the marlin firearms company in 1950.
Your serial number indicates that your Marlin model 336 rifle was made in the year 1971.
Marlin Firearms is still in business. Check with them.(marlinfirearms.com)
The serial number plus the book on Marlin Firearms History by Brophy.
Your marlin model 39A was made by the marlin firearms company in 1952.
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.
The original marlin model 55 shotgun was made from 1950-1965.This was before the gun control act of 1968 which mandated that all firearms have a serial number.
The H prefix to the serial number that you provided indicates that your marlin model 336 in 30-30 Win. was made by the marlin firearms company in 1951.
go to: Marlinfirearms.com and pose the question to them
you can contact marlin firearms and they should help with a rifle that is some what new like yours.