Micrometer, plate measuring; COB079


Micrometer, plate measuring

About this object

Plate measuring micrometer; manufactured by Ernst Leitz, in Wetzlar, Germany around the turn of the century. Used by researchers at Carter Observatory for detailed examination of photographic plates, especially for research into double stars.

Constructed mainly of brass, the instrument consists of a heavy rectangular base with two micrometer screws on either side for adjusting the position of a glass plate suspended above the base and an angled mirror underneath. Over the top of the glass plate is a gantry, attached to which is the eyepiece. The eyepiece can be moved from side to side along the gantry which is engraved with measurements. Micrometer screws on either side of the eyepiece adjust the focus. Engraved in the top of the gantry: "E. Leitz / Wetzlar".

Place Made


Medium and Materials

Brass, Cast Iron

Inscription and Marks

E. Leitz, Wetzlar

Object number



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