What is the value of crosman 150' 22 cal pellet gun works in fair condition made in fairport ny grips are an off white plastic?

This is a really neat pistol. In Fair condition it would be worth around $35 - $50

It was made in 3 variations 1954-1956, the first type 1 had an adjustable power knob the second type 1 had a nonadjustable knob. the type 2 1956-1957 had a one piece breech barrel nonadjustable.

Now the interesting stuff:

add 150% type 1 sears/jc Higgins with grey finish on frame and loading port

add 30% sears TED WILLIAMS versions

add 30% Wards version

add 75% KC version

add 100% Canadian version