My dad worked at the H.K.Porter plant in Somerville Massachusetts making their tools. They also helped service the Mount Washington Cog Railway! I love to find and collect tools made there. I have 50 tools made there.
Much of the H. K. Porter plant in Pittsburgh is still standing in lower Lawrenceville near the Strip District. In addition there's an H. K. Porter Building, an architecturally interesting office building built in 1958 in Downtown Pittsburgh. Technically the H. K. Porter company still exists, but it's mainly a holding company now.
The largest 3-ft gauge diesel-electric loco the Porter Co. built, 75 tons, was for the US Gypsum Co. of Plaster City, CA in 1946. It has 2 3-axle trucks made in A-1-A + A-1-A configuration but converted to a C-C configuration in 1950 or 51. It went from Plaster City to Flint, MI, to Georgetown, CO to Durango, CO.
