I just visited your channel, it looks like your
1949 Jensen 10 Leaks Fixed & Polished Up is kind of like mine, with the rivets on the tank. Also, it seems like on the side of your firebox there aren't any rivets. When I was talking to Jensen they were confused as why I didn't have rivets/screws on the side to keep the tray up.
So what is the big hole in the front for - it seems the cord some out from the back - I assume my #10 did too. Then I guess there is some kind of insulation inside or some kind of fabric?