To disassemble a Bernardelli Gardone pistol in caliber .25, first ensure the firearm is unloaded by checking the chamber and magazine. Then, remove the magazine and retract the slide slightly to align the disassembly notch with the slide stop. Push out the slide stop pin and carefully slide the frame forward to separate it from the slide. Once separated, you can remove the recoil spring and barrel for further cleaning or maintenance. Always consult the owner's manual for specific instructions and safety precautions.
50 USD or so
Not much. They're cheap, junk, throwaway pistols that are probably worth more as scrap than as actual firearms. Maybe on the street, to sell to some drug dealer or pimp, you could get $50 for it. Few legitimate gun brokers will touch the things. It's a favorite for criminal use, but that's not to say everyone who has one is a criminal.