I bought it from Lee Nottigham at Frames and Thangs in Miss--he had it for his own project and I bought it with a load of stuff--later bought 3 more frames

I think the serial number is 0014 so its an early one and from Nebraska

The foam I used is flat on one side and sorta egg crate on the other--gives good uniform results with waxed or freezer paper---about 1 3/4 clearance and you can pull it out in pieces to remove it