If I'm not mistaken (it's difficult to tell from that CL pic), do those not say "Series XX"? If so, they are definately into the BIC era but likely prior to total downturn in quality. My Series IIF's still show the pre-BIC quality in their drivers and cabs even though BIC had already taken over at that time. The only "cheapening" apparent in mine are the fairly simplistic crossovers. The drivers themselves are of nice quality with the woofers being an obvious RtR design with nice, beefy Alnico magnets. The cabs vary from 3/4"-1-1/2" MDF with a nice and thick wood veneer. Each one weighs close to 100#. Certainly not the Holy Grail in sound quality, but they are unique and quite rarely seen. RtR e-stats are almost fabled in their quality, so it would stand to reason that at least some of their dynamic loudspeaker systems would inherit some of those genes. I, personally, am quite enamored of RtR's loudspeakers. Even those of the late 70's to early 80's.
IMHO.
Dave