This information is no substitute for obtaining a Winchester Factory Letter from the Cody Firearms Museum (available for certain models and serial ranges) which in addition to the Serial Number Application Date, normally provide the original Received In Warehouse Date and Date Shipped from Winchester factory. George Madis, Ned Schwing, etc.), in which case the data was extrapolated to the best of our ability. To the maximum extent possible, the dates of manufacture shown were obtained from the original Winchester Factory Polishing Room serialization records otherwise estimates were made using multiple sources of information (e.g.
