Ball recording sextant with brass and alloy frame and plastic handle in rectangular fitted wooden box with a leather strap, made by the Mergenthaler Linotype Company, Brooklyn, New York, USA, 1944. Consists of scale (0° to 90°), on reverse, with 1°’ divisions and micrometer (1’), day and night telescopes (236mm) and no filter shades. In use, the celestial body is viewed directly and instead of a plumb bob, a falling steel ball records the altitude on a screen, and is read off the scale and micrometer. Ball recording sextant with case.
Linocomp 1 photo-typesetting machine, serial no.947E, with 16 and 10 pt lenses, 1978. Linocomp Photo-Typesetting Machine, 1978
Phototype setting filmstrip from Linocomp photo typesetter made by Mergenthaler Linotype Co., Plainview, 1973. Phototype setting filmstrip from Linocomp photo typesetter made by Mergenthaler Linotype Co.
Linofilm photosetter matrix grid, serial number 1890-0-26266, 1950-1976. The characters are inscribed onto a glass plate and the matrix remains stationary during the printing process. Matrix grid for Linofilm 505 photosetter, 1950-1976