It appears they estimate that 1949 began with 1500000.
joab wrote that 1942 started with 1221289.
We know that Winchester was up to their necks in war production by that time, and that few, if any, sporting arms were produced during the war years. They PROBABLY resumed postwar production with serial numbers not a great deal higher than 1221289 - - Maybe right where they left off, or perhaps with some nice, even number llike 1250000.
If you sent in the $50 fee to the Cody Museum for as historical letter, I bet it would document your '94 as 1947 or so.
Best estimate - - -