At first glance, you might think they were Bose 901s, but these are more massive and the rear diagonal faces do not meet in a sharp angle like 901. They have (1) forward facing drive and (2) diagonal rear facing drives. Each side has the same componants. (1) 8" woofer & (1) 6" tweeter. There is a tweeter control and a toggle switch that enables or disables the front facing driver. The only marking I can find is a ( M 601) along with a serial number for each.I bought them at an auction because they were so unusual and they sound really great, but I would love to identify them. I also have to refinish them.
Hope someone can help
Ed