This thing is heavy duty. Over 3lbs, almost 15″ fully open, cutting capacity about 1 3/8″. I can’t find much information about this particular tool.
The Walworth Mfg Co. started as Walworth and Nason in 1842, designing and installing central heating systems. In 1852 Walworth and Nason split and the company became J.J Walworth & Co. In 1869, a Walworth employee, Daniel C. Stillson, designed a new type of pipe wrench, now known as the Stillson wrench.
In the 1905 Walworth catalog, there’s a page dedicated to their pipe cutters, they sold three designs. This one looks closest to their “Stanwood Improved Three Wheel Pipe Cutter,” but not exactly.
It looks an awful lot like the pipe cutter offered in the 1916 Montgomery Wards catalog:
Bonus interesting fact about Walworth: On October 9, 1876 the first ever phone conversation took place between Alexander Graham Bell who was in Boston and Thomas A. Watson who was at the Walworth Mfg. Co., in Cambridge.