If you call S&W, they will tell you when it left the factory.
If you have a model 55 centerfire rifle it was made in 1924.
671, 1342, 2013, 2684, 3355, 4026 +671 . . .
It is: 671 = DCLXXI
1, 11, 61, 671
No - 671/2 = 335.5
1971.A Winchester model 1894 rifle that was made in 1971,and in the condition that you describe will bring between 300-350 dollars on today,s market.
0.1431
2314 + 671 = 2985
0.0373
83.875
671 x 5280 = 3,542,880
It is: 671 = DCLXXI in Roman numerals