In the earliest days of Revere Ware, the Bakelite handles sandwiched around a metal spline, which showed through all around. The handles had a hollow screw / nut where the handle hook goes, and two screws near the front of the pot, like this:
Around 1947, they changed to the newer variety of handle, the type we sell replacement for.
On the newer style vintage handle, the spline on the largest version of the sauce pans and skillets is 3/4″ wide from top to bottom.
Customer Laurence seems to have come across a skillet that has a different handle.
Note the sharp outer edge and the pour spout. I’ve seen these before but this skillet seems to have a much sharper bottom curve as well.
His handle is a cross between the newer vintage style (where the spline fits in a channel) and the older style, with the hollow screw and nut where the handing hook attaches.
The spline height on this one is 1 inch in width, which I’ve never seen before. You can see from comparing the skillet spline with the example shown above, that it is taller.
It is definitely a unique pan. My working theory is that it is something that they were perhaps experimenting with as they were developing the new handle styles.