Look at the underside of the rifle, it will probably be stamped into the action up by where it meets the wooden fore stock. If it's not there, look at the metal tang that attaches the shoulder stock to the action. The number may be etched into that strip just behind the lever.
Value of a Model 1894 Winchester serial number 491333
Your winchester model 1894 rifle was made by winchester in 1900 with the serial number that your provided.
With the serial number that you have provided,your Winchester model 1894 rifle was made in the year 1913.
With the serial number that you have provided,your Winchester model 1894 rifle was made in the year 1965.
With the serial number that you supplied,your Winchester model 1894 rifle was made in the year 1950.
With the serial number that you provided,your Winchester model 1894 rifle was made in the year 1973.
Your Winchester model 1894 was produced by Winchester in 1912.
With the serial number that you have supplied,your Winchester model 1894 rifle was made in 1985.
With the serial number that you have supplied,your Winchester model 1894 rifle was made in the year 1900.
Your Winchester model 1894 rifle was made in the year 1921 with the serial number that you have provided.
With the serial number that you have supplied;your Winchester model 1894 rifle was made in the year 1908.
With the serial number that you have supplied;your Winchester model 1894 rifle was made in the year 1974.