while checking on a patent for my anvil/vise; patent number 1,111,103 I checked on the patentee's other known patents,
he had an earlier patent for a vise.
but, he also had a patent for a anvil/vise with forge, blower and drill.
patent number 1,266,724 issued May 21, 1918
Carl Shields, Rock Island, ILL. CO-FOUNDER OF THE Rock Island Mfg. Co. which was operating until approx. 1930