Found it! Here’s a photo of the clear Plexiglas case for a 1939 RCA TRK-12 TV Colorado Plastics built. Same as a display at the 1939 NY World’s Fair. Still on prominent display at the Australian Centre for the Moving Image here in Melbourne!
Colorado Plastics is now taking orders for Free-Standing, Clear Acrylic Countertop and Desktop Partitions for Covid19 Reopenings that follow CDC Guidlines
Our Monthly 4th Friday Half-Price Plastic Remnant Sale is Suspended Indefinitely, Beginning in March 2020, While Covid19 Crisis Lasts:
Normally, every month, on the fourth Friday of the month, Colorado Plastic Products puts all of its remnant and scrap plastic on sale for half-price. This sale includes machinable plastic like ABS, acetal, Delrin, HDPE, nylon, PTFE polypropylene, Ultem and UHMW. It also includes see-through sheet plastics like acrylic, Lexan, Lucite, PET-G, Pleixglas, polycarbonate, and Vivak.
The Half-Price Remnant Sale will not be held until Covid19 Social Isolation Measures have been rolled back.