A couple of interesting bikes are currently at the Japanese auction. I believe the Cherubin is the brand started by Yoshi Konno, before he established the 3Rensho name. Pretty high starting prices too, and no bidders. Photos at the bottom of the page.
http://page7.auctions.yahoo.co.jp/
and a tandem
http://page.auctions.yahoo.co.jp/
Dennis Young
Hotaka, Japan