Help identifying an old piece

6mm Flobert is the ammunition it takes

https://www.midwayusa.com/product/1...ion-22-bb-cap-6mm-flobert-18-grain-round-ball

Cheap Italian sort-of copy of a Remington 95 derringer. Made in 1965. (XXI) proofed for smokeless powder (psp) Gardone provisional proof
(the one by the hinge). Caliber appears to be 6mm FLOBERT. That is a very low powered cartridge. 22 short, long or long rifle may fit in the
gun---don't do it. You stand a fair chance of converting your cheap Italian pistol into a rather effective hand grenade--in your hand.

Welcome to the forum.

Thank you for the information its very helpful we were just struggling to find any information on the gun and this should help tons

Might even fall into Pub Gun category floberts were used Pub Betting like Darts/Pool most were rifles I believe.