I just listed one for the Wrenching News Spring Auction.
0219. G & J MF'G Co Chicago / C. E. BILLINGS PAT'D FEB 18TH 1879 (with a ruler scale on shaft) - - 5" center screw adjust bicycle wrench with an unique bulbous end. Evidently made exclusively for Gormully & Jeffery Mfg. Co. of Chicago, early manufacturer of Rambler bicycles. Patent was issued to Charles E. Billings of Hartford, Conn. and was the basis for several of Billing & Spencer's early adjustable wrenches and later copied by other wrench manufacturers after the patent expired. Good+ with spots of minor pitting. (S857)
http://www.datamp.org/patents/displayPatent.php?number=212298&typeCode=0 (http://www.datamp.org/patents/displayPatent.php?number=212298&typeCode=0)
(http://i222.photobucket.com/albums/dd3/buswrench/york-2012/Y12-0215-241.jpg)