Hinged back for Sentinel model IU-400TV, 7" TV and possibly others. This area is 3" long starting at the top of the hinge.
Hinged Back for 1949 Sentinel Model IU-400TV, 7" TV, #2
Metal back for 1949 GE, General Electric 12" TV's
Three Long Shaft Controls for 1949 Model 400, Sentinel 7" TV and Others
Five Short Shaft Controls for 1949 Model 400, Sentinel 7" TV and Others
Tuner Cover, Shield for 1949 Sentinel Series 400, 7" TV's, Many Others...
CRT Shields, Mount/Clamp for 1949 Motorola 9L1, 8” Portable TV.