Is it safe to fire modern ammo in a J Stevens Arms and Tool Co 12 gauge single barrel marked Electro Steel Choke Bore and possible serial CK 82 but no patent or model number?

Possibly. Have a gunsmith check the headspace and the hinge pin sales@countrygunsmith.net.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.