No published sn data.I can say that the Mossberg model 151 semi-auto .22cal rifle was made from 1950-1951 if it is the model 151K.The model 151M was made from 1946-1947.The model 151M(a),151m(b),and 151(c) were made from 1947-1958 and were close to the model 151M with minor changes in the buttplate,and sights.
Depending on condition, between $100 and $200.
What condition is it in. That determines the value.
IF the rifle has all sights, etc, has not had stock modified, there IS a modest collector's interest in the older Mossberg 22s. $200-$250 is an average price. They shoot VERY well.
The Mossberg Model 151-K was made for two years only: 1950 and 1951.
This semi-auto rifle was made between 1946-1951.
First, there is no such thing as a 16 gauge rifle. You can have a 16 gauge shotgun with a rifled barrel. Second, without knowing who made it there is no way to give an even moderately accurate worth.
The New Price Is Right - 1972 10-151 was released on: USA: 9 April 1982
The New Price Is Right - 1972 11-151 was released on: USA: 6 April 1983
The New Price Is Right - 1972 15-151 was released on: USA: 23 April 1987
The New Price Is Right - 1972 12-151 was released on: USA: 18 April 1984
The New Price Is Right - 1972 13-151 was released on: USA: 19 April 1985