Charles Daly 12G Trap Shotgun: History, Value & Steel Shot Compatibility

Question
I own a Charles Daly 12G trap shotgun with 32 inch Krupp full steel barrel SN#2202. How can I find when it was made and where? I would also like to know a possiable value and can I use steel shot (for shooting over water)without hurting it?
Thank you

Answer
Is there an exact model name?
It sounds like Charles Daly Prussian Trap Gun
which were made pre war Germany.
But I am not 100% sure.
If that is what it is it is quite valuable in 3000 to 5000
dollar range. I would not shoot steel shot though any pre 1970s barrels.