This stencil set dates back to 1955. Made by the Stenso company, Set No. 44. It has 2 cardboard stencil sheets. Some have been punched out to reveal the letters and numbers, but doesn't appear to have ever been used. There are no apparent pencil or pen markings on the stencils themselves. The paper sleeve is worn, as shown in the pictures, but the stencils are in perfect shape.There is also a 10" ruler printed on the edge of the cardboard stencils. Industrial Building, Baltimore 2. Mayland, Stenso Lettering Co. and Made in the USA are all printed on the stencils as well. Useful and collectable!