Aquarium/Tank Microscope

Object Name: 
Aquarium/Tank Microscope

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Object Name: 
Aquarium/Tank Microscope
Accession Number: 
2016.8.27
Dimensions: 
Overall H (without triple-jointed microscope): 34.7 cm, W: 18.1 cm, D: 9.7 cm
Location: 
Not on Display
Date: 
about 1885
Primary Description: 
Aquarium/Tank Microscope. Rolled, cast brass, nickel plating, colorless plate glass. Weighted nickel-plated pillar stand supporting a blackened brass frame holding a 10 x 11 x 1.3 cm glass "aquarium", open at the top. One face of the frame is covered by a large blackened brass plate with nickel-plated fittings. This dovetailed plate slides horizontally, and has a vertical slot with slider carrying a circular aperture (with choice of two diameters). The aperture can thus be positioned over any point in the aquarium, and serves to block stray light. Clamped by thumbscrew to the pillar is the simple microscope, a magnifier on triple-jointed linkage with counterweight and control knobs, thus positionable anywhere in the field. Rack and pinion control allows focusing over a wide range. This linkage is constructed of blackened brass with bright lacquered fittings. (a) Nickel-plated pillar; (b) blackened brass mount for glass tank; (c) blackened brass dovetailed plate; (d) blackened brass slider; (e) removable blackened brass circular aperture; (f) triple-jointed microscope; (g) colorless glass "aquarium".
Provenance: 
Tesseract, Source
2016-08-10
Material: 
Inscription: 
J. Klöne & G. Müller Berlin No. 2110
inscription
Engraved (a) on top of base in script
H.g.
inscription
Painted (a) on top of base in red - partial loss to "H"
C. BAKER / -244- / HIGH HOLBORN / LONDON
inscription
Stamped (f) on one side of circular element
6
inscription
Stamped (f) on one brass plate
3
inscription
Stamped (b) on base of brass mount
Acquisitions (2017) illustrated, pp. 32-33 (#21); BIB# AI103665
Geschichte Des Mikroskops (1984) illustrated, p. 113;
Tesseract: Early Scientific Instruments illustrated, Catalog 102 #11; BIB# 145588