I found this plane in an antique shop today. The pictures speak for themselves. The logo on the blade is not one that I've seen before or could find any online info about. It was sitting next to a pre- Sweetheart stanley no. 5 1/2 so I compared the body castings. They are close but not exactly the same. For example the heel and toe are not quite the same shape and the one pictured is about an 1/8" narrower.