Monongahela Railway Lantern made by William Porter's Sons. This brass top railroad lantern was manufactured by the William Porter's Sons Company for the Monongahela Railway. It takes a special 6-inch globe that is narrower than a standard globe of that height; a regular 6-inch globe is too wide! The red globe has"M Ry Co" cast lettering, and the frame has one-inch tall "M. Ry Co." lettering stamped on the rim. The latest patent date is December 12, 1882. However, the actual date of manufacture was likely much later than that since the "Monongahela Railway Company" name dates to 1915. Photo by permission. Click on the image above for a larger version. See past featured Items.