They are Electrovoice Baronet extension speakers, or a close facsimilie. IIRC, they have an 8" whizzer and a T35 tweeter, and don't sound all that hot. When the other speaker was a Georgian or a Patrician, the second speaker didn't really matter. No bass to speak of, and a pair might sell for $100 to $150.
In the pool of vintage speakers, and bad vintage speakers, these fall as close to bad vintage speakers as anything that EV ever made.
Oops, I was wrong. These are Stereons, with the T35(0) and T25. Now I know why the bass is nonexistent, because this model does not have the 8" whizzer sidemounted like I remember. I have the identical one, here is the cut sheet.
http://mypicsonline.net/archive/archives.telex.com/archives/EV/Speakers/EDS/Stereon A & III EDS.pdf
And looking at your photo, this is one of the later Stereons, or modded like my friend's version of 30 years ago. That one does have the 8" whizzer, from the look of things. Gotta love these midcentury kits...