What is the value of a Browning Automatic 16 gauge shotgun in good condition manufactured in Belgium in 1928?
"Good" is a relative term. Assuming 70% overall condition, about
$350. Note that cracked forends or buttstocks, completely gray
metal or rust is definitely less than "good." In less than 90%
condition, Auto-5's are valued more as shooters than as collector
pieces and pre-war 16ga shotguns should definitely be checked for
chamber length. Yours originally had the older 2 9/16" chambering
and should not be used with modern 2 3/4" shells.