The Billings 13-8 Pliers in the photos was broken and re-purposed for some utility, one jaw is completely broken off 1/2 way up its length.
The Billings 13-8 was a plumbers pliers. It had three sets of serrated jaws, and a central square notch. The notch was for turning valves on/off when valve handles were missing, the lower serrated jaws were for 1/4 and 3/8 pipe size, the larger serrated jaw fit on 1/2 and 3/4 pipe. The larger was made for 3/4 pipe and the smaller for 1/4 pipe. The neat thing about the pliers is they added a set of jaws for 1/8" pipe size. It was in the end of the pliers. I've had this for years, found it for 50 cents at a thrift store, always look for old "USA" tools. This one was so well made, it works great in tight spots, lots of leverage on the handles.