The Set: Pete Deksnis's Site about the CT-100
Restoring a Vintage Color Television Set
Close-up of Mounting Frames shows serial numbers. It appears as though they were written by hand with an etching tool.
Camera lens is about 5-inches from the etched numbers. Clear-Glass Faceplate faces up.
November 7, 1999 photo. Thanks to Steve D. for this 15GP22 exploded view added 27 October 2000.