Not manufactured any more.

Speakers come and go. For most there is a reason they are no longer made. 

I do not long for any speakers in the past. There is only looking forward to improved performance. You have to know what you are listening for. Many are just shooting in the dark. 

I liked my father's B302 Bozaks. They were very efficient warm loudspeakers that worked great with low power tube electronics. They were better than anything I could afford at the time. I have no desire to resurrect the past. The present is so much better. 

This is how I get my rig to sound like live music. LOL

@mijostyn ..."I have no desire to resurrect the past. The present is so much better."

One can learn from the past to observe, refine, redesign, restyle and optimize. Many cool designs you see today with speakers are spawned and resurrected from great ideas of the past with new materials and updated engineering to some degree. However, even for musical speakers, technology has not changed all that much. Other areas of audio electronics have progressed much more than speakers past 50 years, actually.  This is definitely not a thread about digital zeros and ones. 

DSP Bluetooth speaker threads can be found elsewhere, LOL. 🤣

ElectroVoice Sentry III monitor.