What is the value of a Stevens model 940b 16 gauge single shot? And when was it made?
Do an internet search with the words Brazil, shotgun and 20 gauge'
Impossible to answer without knowing who made it.
Numerous companies in many countries have made single shot 12 gauge shotguns.
1949
What year was riverside, 12 gauge, single shot ,model 548 made
$20 US if your lucky
Cobourg Ontario
1960's.
mossberg
Pedretti
Inexpensive; late 1800's made.