According to the Mossberg pricing sheet for 1950, East of the Rocky Mountains, wholesale was $20.50. minimum retails was $25.95, and $1,00 higher West of the Rockies. See link below-
1947-1950
as of 2007 a mossberg 185d in excellent condition will retail for approximately $90. This specific model is a bolt action 20 gauge shotgun with a 2 round removable magazine and screw on choke tubes. They were manufactured from 1947 until 1950.
The Mossberg model 185D bolt action shotgun was made from 1947-1959.
50-175 or so
25-250 usd
50-200 or so
50-150 USD or so
$75-125, depending on condition.
Blue Book of Gun Values will help.
1950-1955
The Mossberg 410 183D B was made from 1950 to 1953.
The mossberg model 151K was made from 1950-1951.