Founded by Ernst Gundlach after he lost his job at Bausch and Lomb in the Microscope Department. Gundlach left the company in 1895 to found the Gundlach Photo-Optical Company. In the same year as Gundlach left the company acquired Milburn Korona. They also acquired the Manhattan Optical Company. In 1926 it became "Gundlach Manufacturing Company". It was bought by John E. Seebold in 1928 and lasted as Seebold Invisible Camera Company (later Dynamic Optics Inc) until 1972.