If you call S&W, they will tell you when it was shipped from the factory.
I know the 4006 started production in 1990 and still is today. That ser# I don't know.
http://armscollectors.com/sn/windates.htm
No serial number = no answer.
1905 (first year)
I have the same Question and my ser# is 47078
45 years old
Made in 1974, 35 y.o.
Depending on markings, the miltary model would come in at 1918, while the commercial model, 1970.
You will need to include the serial number and model(99E,99F,99R,etc.)to get the answer to your question.
100-1000 USD
You mean an 1893? (model 3) Made 1893 - 1903
Your serial number indicates that your Winchester model 70 bolt action rifle was made in the year 1956.