If I am right the pistol was made by By Crosman for Sears under the JC Higgins name. It's a Crosman model 600. 22 Cal C02 pistol. Made between 1960 and 1970. Value is determined by the current condition. Without more information about the working and current condition it is not possible to set a value.
The actions operation.
Which model. If the model number starts with 126 it was made by Crosman if it starts with 799 it was made by Daisy.
0-60 usd
A single shot pistol, a Derringer and even a revolver are technically NOT considered semiautomatic. To be semiautomatic, the weapon would need to use the energy from a previous round to cycle the action. Revolvers use the muscle energy of the shooter's finger to revolved the chamber.
50-100 USD
shotgun, rifle and pistol.
Yes, Coonan is one.
Check the receiver and barrel
A pellet gun is not adequate for protection, and will get you arrested.
If you are asking about the Crosman C02 pellet pistol then Yes that is what it is designed to power the pistol.
50-1000 or more depending on the specifics.
What model?