What model and what condition is it in.
It all depends on the current condition of the Rifle.
My understanding is the model 938 was a toy rifle not a bb rifle, but I did find out it was made in 1988
This BB RIFLE not gun. Would be worth between $40-$50 in Good condition. It was made 1963-73
Around $45
I can not find a CROSMAN model 350 BB gun, Do you mean a V350 BB rifle. If so then one in good condition is worth between $55-$70
Which model, what is the condition of the BB gun or is it a BB rifle..
Less than $50, typically.
I've gone through several air gun catalogues and have been unable to locate a Daisy model 170 bb gun that has ever been made. I did find a Daisy BB gun model 5170 and a BB rifle model 1170 along with a BB rifle model 107 but "NO" model 170. So here is what I suggest. Contact Daisy, They offer a service to evaluate older Daisy antiques for free. See the link below.
It would be worth between $80 and $105 in good shape.
Nothing, unless you can tell me the model number, the current condition and if it is still working. Also is it a BB gun or BB rifle. Without more information it is not possible to answer your question.
The Rifle was made between 1957-58. without more information about the condition of the rifle it is not possible to answer your question with an estimate of value.