Superior Electric LUXTROL Rotary Wall Box Dimmer Switch Model WBD800. Set of 4

  
It is a heavy-duty, commercial-grade autotransformer (Variac) light control dimmer. Device DetailsFunction: It adjusts the brightness of high-wattage lighting by physically rotating the internal transformer winding. Application: Due to their ability to operate without creating electrical interference or "buzzing, " these models are widely utilized in recording studios, broadcast booths, and older theater installations. Design: The unit features a distinct cream-colored dial with a signature cursive pointer. It mounts into a deep metal wall enclosure box. The front white plate shown detaches to serve as the external faceplate.

These were removed from a mid-century house and each is complete with the housing, the electronics and the trim. A rare find for a set this intact.

See my other auctions for several other mid-century items that may interest you. I have a NuTone intercom system listed and 4 vintage eyeball lights.

The description above is AI generated because it says it better than I would have been able to describe it. If you know what these are, you know.