Hello, my first post.
I have some dq-10s I bought? used in Berkeley 25 years ago. I had never set them up to use after the first week (too big for the room). I was going to sell them on eBay so I opened them up for the first time to clean off dust etc. and they have a small white paper label glued to the masonite. One is 00154 and the other 00167. I gather from reading this group that is early production, but they also are mirror imaged and have yellow caps when I bought them. I will take them apart and try to look at the woofers, which I think have been refoamed. Also they have one 1.5 inch midrange which is a Regnar replacement. Maybe I can find a stock replacement on eBay.
Anyway after reading the knowledge base of this group I think I will keep them and try to restore to original. I will post pictures soon. thanks.