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Drum Microscope with Accessories and Case, by Trécourt & Oberhaeuser, Paris, 1830

Inventory Number: 41632
Object Type: microscope
Place Created: Paris France Europe
Subject Classification(s): Microscopy  
Accession Number: 1970-101/part
Brief Description: The compound eyepiece pushes into the top of the body tube, which is held in a brass sleeve. A nose with a button objective, screws into the lower end of the body. Coarse focusing is by sliding the body vertically. The sleeve is mounted on the top of a cylinder with a section cut away to take the rectangular stage plate. A vertical screw at the side of the cylinder, below the stage, facilitates fine focusing by tilting the plate. A window is cut in the front of the cylinder, near the base, to allow light to the concave mirror mounted on a spindle within. A superstage bull's-eye lens, mounted on an articulated arm, is held on a dovetail fitting on the front of the cylinder. The instrument screws onto a circular lead weighted base. The mahogany case lined with purple velvet and has purple silk padding in the lid. It also contains nine nosepieces, eight with objectives, six eyepieces, two simple lenses and an ivory slider.
Primary Inscriptions: "Trecourt & Oberhaeuser, a Paris"
Provenance: Lent by the Royal Microscopical Society This instrument was sold to a Mr West for FF520. Presented to the RMS by members of the Council on the 16th of February 1910.
Collection Group: Royal Microscopical Society Collection
Material(s): Brass.
Wood
Velvet
Silk
Dimensions:
Height Width Depth Diameter Unit
240 70 mm

Narratives

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