Monocular compound microscope - 189332 - 1900-2000 - Germany - Leitz

Maker: Ernst Leitz, located in Wetzlar, Germany—a renowned manufacturer of high-precision optical instruments and microscopes.Dating: Based on comparative serial number records for Leitz microscopes (where serial number 163721 dates to approximately 1913 and numbers around 244329 date to the mid-1920s), serial number 189332 indicates that this instrument was manufactured around 1915 to 1917 during the First World War era.Material: Polished brass drawtube and focus wheel housing, typical of scientific equipment from the early 20th century.