Any guesses here ?

[Dave]

[David C. Poland]

Self powered speaker, meaning has its own power supply for the field coil. General shape reminds me of the speaker Scott used 1935-37. Could be a theater/auditorium speaker for more remote locations to avoid running high voltage long distances.

The 5 tap switch suggests could chose among programs or stations.

[Scott Seickel]

Probably used in theaters or auditoriums as David said.  I had a couple of similar speakers.  Almost threw them out until I realized the ones I had were made by Western Electric...the tears in the cone didn't matter to the audio people.  They financed a few radios for me.