Antique 1869 Russell & Erwin Doorknob

I would love to have a pair of door knobs, with one knob a terrier, exiting a den pipe, and the other knob a terrier tail popping out the back. If these were made in wax, a company could be found to cast 100 or so, and I think they would sell for $250 a pair. Perfect front door hardware, and I'd buy the first set!