I'm guessing that first number is a 7, not a 1. (73667) ... I own one with a similar serial number. If that is the case, The year of manufacture for serial number 73667 is 1941. http://armscollectors.com/sn/winlookup.php
Your winchester model 74 was made in the first year of production for this model.That year is 1939.
Your winchester model 1892 was made by winchester in 1906.
Proofhouse.com has sn tables.
By adding the serial number to your question.
Your Winchester model 42 was made by Winchester in 1935.
Your winchester model 12 shotgun was made by winchester in 1957.That puts the age of your model 12 shotgun at 54 years of age.
Your Winchester model 1894 was made by Winchester in 1940.
your winchester model 1894 was made by winchester in 1979.
What is the age of a Winchester model 63 sn 82xx? 1935
the Winchester model 67a was prouduced from 1934 to 1963
The Winchester model 670a was made from 1967-1973.
Your Winchester model 1894 was made by Winchester in 1984.