Terry's Hedgehog Pipe Reamer

A vintage Terry's Hedgehog Pipe Reamer (patent no. 22411-09), probably dating from between 1930 and 1950, made of two sheets of metal fastened together, and measuring approximately 3.7 x 5.2 x 1.2cm (max).  There are a few small rust spots to the surface, together with general corrosion and tarnish.