Just happened to come upon this.
Although I know that Roy's collection is up
for Auction throught F.A.B.
Can view video of it here
http://www.fabmagic.com/libuthgideyi.html
This was built in 1973.
After Mark Wilson's and before Doug Henning's.
Curious to see whom wins it and how much...
Another branch to my family tree book.
check out the video.
its the first time i've seen it.