Looking for more info on this wrench patented by Edwin P Russell of Manilus , NY. As you can see, the patent is on Datamp and no assignee named.
Value?  One sold some time ago on M J Donnelly for +/- $400.

Sort of makes me wonder if Joseph Eifel ever saw that patent.

"Edwin P. Russell was a native of this town, son of Anson Russell.  He was a builder by trade, and carried on the furniture business in Belleville, Canada, about ten years.  Returning to Manlius he and Porter Tremain purchased the rights to the Preston mower and manufactured it in what is now Cheney & Son's lower foundry.  Later he manufactured clothes wringers.  He died in Manlius in September, 1877. "

Not sayin' it is, but...this would seem to be the guy.  From "EARLY SETTLERS AND DEVELOPMENT OF THE TOWN OF MANLIUS".  About halfway down the page just above the military school picture.  I attended that school for one year in 1966-7.
http://sites.rootsweb.com/~nyononda/MANLIUS/EARLYSET.HTM