WF Sheard was a gun dealer in Tacoma Washington, who patented and manufactured several different rifle sights. His sights were available on the Winchester 1894 and several other makes/models. sales@countrygunsmith.net He is also mentioned in the caption of the 9th picture on this site: http://users.bentonrea.com/~tinear/logging.htm
Your winchester model 1894 rifle was made by winchester in 1908.
your Winchester model 1894 was made in 1900.
your Winchester model 1894 was made in 1909.
your Winchester model 1894 was made in 1911.
Value of a Model 1894 Winchester serial number 491333
Your Winchester model 1894 was produced by Winchester in 1912.
Your winchester model 1894 rifle was made by winchester in 1972.
Your winchester model 1894 was made by winchester in 1958.
Your winchester model 1894 was made by winchester in 1972.
Your Winchester model 1894 was made by Winchester in 1896.
Your winchester model 1894 rifle was made by winchester in 1910.
Winchester began making the model 1894 in 1894, and are still making it. You need to give us a serial number to date it. Value will depend on specific model and condition.