value of my Win. model 12 / 16 gage

Looking for a value of my Win.model 12/16gage
nickel/steel ser. # 303XXX any info would be great thanks

your md 12 was made in 1922 and current value for a standard grade in good condition would be 275 good-500 excellent in my part of the country depending on if all original,, to a collector or at auction,,dealer will proably offer in the 225-300 mabey more if really clean and original,,
bigcurt

all numbers match it also has a solid rib on top