Thank you for your answers. The guy who was asking said that his wife did a lot of sewing and he has collected a number of spools of thread that he is using for tying. He said that he had a plastic bobbin that will work but the spool tension has started to loosen. He had been told that there was a metal bobbin. He was not told who made them or even if they were for fly tying.
Tyeflies: I don't know what the gudebrod spools looked like. I will do some searching on the web at the gudebrod site if they have one and also through old magazines for an ad.
Thanks again for all the help. You all are a great source of help.
JC - I really enjoy the whole Bulletin Board many thanks to you.