We have all heard of Frankenplanes but this appears to be a Frankensaw, made of parts from at least three saws. I found it in a second hand tool shop as a bundle of bits. Both the uprights are stamped “W. Marples & Sons Sheffield Eng.” but their distances from mortice to blade are different. The “tensioning stick” was a crudely sawn bit of mahogany so I made a replacement of beech. All the other wooden parts are beech except for one of the knobs, which is of boxwood and presumably originally belonged to a superior grade of tool. One of the uprights is stamped “LCC” which I guess may mean London County Council. I scraped off the remains of horrible brittle varnish. It all goes together to make a saw that is useful although rather strange. I can’t complain for £2.