[rrova]

OK, progress! A liberal application of acetone to a small section of cone edge, followed by very careful lifting of the edge by an exacto blade. I got off the cone with most of the edge intact. Enough to use to put it back...

Then a piece of round key stock just the size of the pin along with a couple of 2x4's under the speaker assembly and a good pounding with a hammer eventually persuaded the pin to drop out. Field coil is free to remove and I'm a happy camper!

Thanks for the encouragement and help. Now on to the winding--let's see where did I put that magnet wire?...