The Crosman 38T Target came in .177 & .22 caliber. It was manufactured in 3 different variations over the years. (1964-85) In excellent condition it is worth around $90 plus another 20% for the original box.
The model 600 was made between 1960-1970 it is a .22 caliber pellet pistol, in the condition you describe it is worth in the area of $275. Plus, add 20% for original box and papers.
It would be worth between $65 - $75. Add 20% for the box
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.
The Crosman Recruit is a pellet rifle not a pellet gun. If you want to see how the rifle is assembled then see the link below for the diagram.
It would be worth around $65 in Excellent shape.
What is the condition of the air gun? Without that information it is impossible to give you an estimate of the current value. Is it excellent, very good, good, fair, poor, not working.
The Crosman model 150 was made between 1954-1967. It is a .22 cal pellet pistol.
In a near new condition with an original box $180-210. GunBroker.com or AuctionArms.com will help you to find a buyer.
The Crosman 180 pellet rifle was made between 1962-1967. Without more information it is not possible to give an estimate of value. You need to give it a value of the current condition like. Poor, Fair, Good, Very Good or Excellent condition. Before I can give and estimate of value.
The Crosman 1088 Pellet/BB is rated at 400-430 FPS
In excellent working condition it would be worth between $75-$95. Like New it is worth around $110. W/O scope.
Feinwerkbau, IZH, Benjamin (Marauder), or Air Force (Talon-p). All of these are excellent, but costly ($300 and up) Or a Crosman 2240 (About $60)