Found an old Iver Johnson breaktop pistol. Don't know much about them.

On the Iver Johnson Breaktop 22 pistol -- What is broken if the trigger isn't going back to original position after firing?

Trigger (return) spring; Numrich has some, depending on your model. These range from complete junk to ok; often not worth fixing, again, depending. Often have rotted out bores.

Thank you.