any firearm, bb gun, pellet gun or anything that launches a projectile are dangerous.
Just because a firearm is a small caliber does not mean its not dangerous or lethal.
So VERY.
This would be a Davis Arms .22 Caliber Derringer.
You will have to contact Rossi
No published data
50 or so
If it is marked ,22 LR, yes.
The Butler 22 caliber single shot pistol was made by Derringer. The Derringer company was founded by Henry Derringer. Derringer pistols are the smallest handguns available and were most commonly used by women.
25-65 USD or so
derringer
Just sold a derringer 25 Davis for $75
.22 caliber pistol
44 caliber derringer pistol.
The caliber of a Philadelphia derringer with Jukar 054167 Jukar stamped on the barrel is not known. There isn't enough information to determine what the caliber would be. A gun collector would be a good person to ask.