they were only made in 1965
Assuming that we are talking about the Marlin model 100 series of single shot 22 caliber rifles,these were promo models that are valued at 55-100 dollars today.They were made from 1936-1941.
== == I have A 100G that I got in 1964, I was 16. Jim
Marlin
lead ammo
Depending on condition, about the same as any Marlin 70 rifle.
1988.
50-135 USD
50-100 USD
The Revelation Model 105 .22 caliber rifle was manufactured from 1971 to 1988. It was made by Marlin and marketed by Western Auto.
I have one and it's a 22 caliber.
Early firearms in .22 caliber were not required to have a serial number. Your Marlin 81 falls into this time frame.
The value of that gun would be about anywhere from 150 to 200.