Cleveland Ohio Oster Factory Pipe Tools Manufacturing Real Photo Postcard

The postcard depicts a woman posing with a Bull Die Stock manufactured by The Oster Mfg. Co. of Cleveland, Ohio. Established in 1893, Oster Manufacturing became a leading American producer of robust pipe and bolt threading machinery, electric tools, and specialized equipment critical for construction, plumbing, and industrial maintenance. This image likely served as an advertisement, highlighting the accessibility or strength of their tools.