It all depends on the model and physical condition of the pistol. If it's a model 1010 in poor condition it is worth less than $13. If it's a Marksman M&P in poor condition it's worth less than $30. In excellent condition (like new) the M&P it's worth $75. Very few Marksman are worth any value outside of the M&P model. Most range from about $8 to $40 depending on the model.
To get an answer you will have to state the condition of the pistol & is it still working?
go on the computer and scan the words 'marksman air pistol' ...............
somewhere around $30
Marksman doesn't list the cocking effort but believe me it's very little. The pistol only fires a 220 FPS and that is slow.
which Model are you asking about
It all depends on the condition of the pistol. Please rate it as Poor, Fair, Good, Very Good or excellent. Like all antiques it depends on the current condition.
It would be worth between $45 - $60.
Starting in 1977 to present
It all depends on the current condition of the pistol. Without more information it is not possible to give you an estimate of value. It was made between 1955-1957
The Repeater itself is not woth much $10 if it is in great working condition. The Marksman Moving targer may be worth more. I found one on the net for $29. It all depends on who may want to buy it.
200 Feet Per Second (FPS)
The air pistol is so inexpensive it is not worth repairing. However you could search the web for "Air Gun Repair" and locate a shop near you to have it fixed.