No markings on casting other than "Made In USA". The number 5272 is stamped on the bottom side of the frog. No markings on the lever cap. Measures 9-1/2" L by 2-1/8" W with a 1-7/8" wide blade. Tote is cracked but otherwise this takes a pretty good shaving. Does this plane have a model number or style by which to call it? Blade is stamped "Sargent and Co.", "Hercules".