Hi Mike, and to all here. I'm Mark. Wow, almost the same thing here. Been following this forum for weeks, and decided yesterday to create an account. I have the exact speakers. There Alnico magnet is stamped May 22, 1968. Mine were in a garage 30+ years (free). Tweeters worked, mids didn't. Was able to clean pots in place, as they looked new, and those two drivers are functioning. I'm stuck at the woofer. It still won't play. Same problem with the other side. I would like to follow your restoration, and keep my questions separate (I don't want to highjack your restoration thread). I would like to get mine playing (not going for perfection), for their 50th anniversary. With that, wishing you the best for your restoration!!!
Mark