Most likely made sometime after 1977 to present. Marksman repeaters are a low grade spring fed air pistol and usually do not have much value. In excellent condition they are worth around $15-$20. They fire a BB at a rated speed of 200 FPS. In comparison with a Daisy Red Ryder that fires a BB at 350 FPS.
What condition is it in. That determines the value.
Crosman does not own Marksman. Crosman made a Repeatairmodel and Marksman made a Repeater model. See the link below for the Marksman Repeater owners manual.
There is No C02 cartridge in the Marksman Repeater, it is spring operated
The Marksman repeater is rated at 200 FPS.
The Marksman 2002 Repeater is rated at 250 FPS.
There have been several models of the marksman repeater. The first one was made in 1955
18 BB according to Marksman
See the Link below for the "you tube" video for Marksman
See the link below
Needs to be serviced/repaired
No way to do it.
It is rated at 200 FPS