The etch on this saw is very clear - "H. Disston & Sons" , Phila. - the steel back is clearly marked "Langdon Miter Box Co.", Millers Falls, Mass.. The saw is 20" long and 3 1/2" wide below the back. The handle is missing a sliver on the top horn - very good otherwise. The plate is VERY straight - 11TPI and bright with some staining - needs cleaning and sharpening to provide a lifetime of service. The handle design and the medallion dates this saw circa 1910. All in all a great saw, especially for being over 110 years old. Thanks for looking - if you have a few minutes, I have many other tools listed among the items in my Ebay store, including other nice saws.  (LS/Brn Shelf - 1022)