This is a very rare pistol. In Very Good condition it would be worth between $295-$350. You can usually add about 10% for the box and accessories. I would keep the BB's and the C02 and not use them. They are more valuable as they are originally unused.
See the link below for the Owners manual.
In Excellent condition, No scratches, dings or damage. It would be worth around $105
Model 600 .22 cal, C02 pellet gun. Mfg 1960-1970 in Excellent condition, no scratches, no wear. $275. some wear $195. Add 20% for original box.
In Excellent condition, Almost like new, No scratches's, dings, rust or ware, the Rifle made between 1950-1955 is worth around $125-$175. If you have the original C02 spare tank it adds value by %30, BUT do not use the tank it could explode.
The pistol alone is worth between $295 to $350 add 25% for the original box. See the link below for the Owners Manual.
In a near new condition with an original box $180-210. GunBroker.com or AuctionArms.com will help you to find a buyer.
around $135. It was made between 1950-54. and its a .22 caliber. If you have the original C02 cylinder spare tank DO NOT USE IT. Crosman had warned owners. See the link below for the Crosman 112 owners manual
It would be around $115 plus 20% more for the box
Crosman 38 C combat In very good to excellent condition it is bluebooked between $75-$90. Add 20% for original box. Add 200%-400% for the chrome salesman sample pistol
It is unusual to find one in Excellent condition but if it shows No wear or scratches it would be worth between $105 and $130. If it was "like New" the value increases to $150
What is the condition of the Crosman? No estimate can be given without knowing the condition of the Crosman. Excellent (Like new) GOOD (Very good condition) Fair (Shows use) Poor (Well used may be nonworking)
If you have the original C02 bottle. Crosman warns you NOT to use it. see the link below for the owners manual from Crosman.
there are over 100 different model Crosman airguns. You need to specify the model and the condition of the Crosman you want to know about