As a part time volunteer at the CFM, I have researched those records in great detail, and just this past January, I assisted a long time friend of mine in publishing a new Winchester reference book that discusses and provides the true (accurate) year ending serial numbers for all of the various models. David Kennedy (the CFM curator at the time) wrote an article that appeared in the CFM news letter about the recently discovered Winchester Polishing Room Serialization Records, and how they differred significantly from what Madis had published. Several years ago, I began researching the historical records held by the Cody Firearms Musuem, and I discovered that Madis was horribly inaccurate for nearly all on the Winchester models. He first published his erroneous information in 1960, and it has been copied by almost every other author and website that exists. The vast number of published DOM lists for all Winchester models were copied from the flawed works of George Madis.
Click to expand.That is a very common occurrence.