It has a serial number from the 1943 - 1948 range, where Winchester lost the paperwork.

It fired like a dream, but I had two issues. The first was that the gate for loading it would hit the rim of the round loaded in there already. I had to REALLY push to get them loaded at first. I also couldn't really find the aim. After trying a bunch of stuff, and shooting all my ammo at the range, a guy next to me offered some advice. It turns out that he is a gunsmith. He pointed out the back sight has a secondary adjustment. I tried to loosen it, but it needs some lubricant or heat put on it to get it to budge. I will get to this soon.