I paid 425 with the camo , the slugbarrel and chokes
The Mossberg 9200 can accept 2-3/4 or 3 inch .12 gauge low brass shotgun shells.
Contact Mossberg customer service. If the shotgun does not have a serial number (not required until 1968) they will not be able to date it.
The Mossberg 410 183D B was made from 1950 to 1953.
Can't find that model in the Mossberg line-up.
The 151M (a) was made 1947-1948.
The Mossberg and Sons Model 146B was manufactured in 1954-1958.
1947-8
From 1968-1971.
that model was only made in 1982.
1954
No published sn data.