Yes, I think Bill's were made by John Backer. I have a set also, and they are gorgeous (but they'd look a lot better on my plane). Here's something John posted in January, from the archives at http://www.maddyhome.com/krsrch/index.jsp , searching on the word "backer"...
"I check my KRnet messages nearly everyday. I can be contacted at jsbac...@yahoo.com or 641-816-5575. My mailing address is PO Box 575 Greene IA 50636-0575." Mark Langford, Harvest, AL see homebuilt airplane at http://www.N56ML.com email to N56ML "at" hiwaay.net