I think you guys are right RTR 300D would be my guess after looking at some other pics, though 600D would be a possible:


Thanks!
oh, I did try to contact the seller to ask what they were and haven't heard back yet.
From the ad: "...old but still sound great. Too big for room. $25.00 for the pair. "
Was looking at them as a pair of beaters for work. Scored a pair of JBL 4408 in excellent condition a little over a week ago for $20, but I need to re-foam the woofers (the foam kit cost more than the speakers!)

Cheers and thanks, not sure if I will peruse them yet.