Good information and links. The airliner is round so I'll buy a replacement. Might take a stab at making the rectangular GE one. It has a removable brass bezel so should be fairly easy to make.

The GE is a Model E-126. Nice rounded corners and flighted sides.

I's in good shape except some of the veneer is just staring to pull loose on one of the rounded corners and crack. I think I might be able to get some glue underneath it and clamp it back down in place without even having to mess with the finish. The finish is good and I would hate to muck it up.