Gaertner comparator compound microscope
Datecirca 1930
Inventory Number1166
ClassificationMicroscope
Subject
Maker
Wm Gaertner & Company
1896 - 1923
Owner
Theodore William Richards
1868 - 1928
Cultural Region
Place of Origin
Dimensionsmicroscope: 33 × 18 × 18 cm (13 × 7 1/16 × 7 1/16 in.)
blue board box: 36.2 × 22.2 × 24.1 cm (14 1/4 × 8 3/4 × 9 1/2 in.)
blue board box: 36.2 × 22.2 × 24.1 cm (14 1/4 × 8 3/4 × 9 1/2 in.)
Material
Accessoriesobjective; ocular
DescriptionThis is a Gaertner & Co. Comparator or a measuring microscope. The microscope tube is mounted on a plate which slides horizontally along a track in a frame operated by a micrometer screw and a graduated knob. The frame is supported by a thick cylindrical post, which is mounted on a cast iron block comprising the base. A glass stage sits on top of the base and there is a mirror beneath.
Signedon side rail: Wm. GAERTNER & CO - CHICAGO -
InscribedE 823
ProvenanceProfessor Theodore William Richards, Chemistry Department, Harvard University; transferred to CHSI, 1952.
Historical AttributesThis instrument was owned by Professor Theodore William Richards, Nobel Laureate in Chemistry, 1914.
Wm Gaertner & Company
Date: 1900-1920
Accessories: micrometer eyepiece, eyepiece adaptor
Object number: 1997-1-1836
Wm Gaertner & Company
Date: 1896-1923
Object number: 2007-1-0208
Wm Gaertner & Company
Date: circa 1920
Accessories: heavy metal stand (attached)
Object number: 0522
Andrew Yeates
Date: circa 1840
Accessories: case, second eyepiece, plumb bob
Object number: 5235
Ernst Leitz (company)
Date: 1951-1960
Accessories: Two Compens 10x eyepieces; two Zeiss 10x eyepieces; many loose square filters (sized to fit in slots in eyepiece), some in felt bags; eight similar filters mounted in rectangular black metal frames marked (on masking tape) A1, A2, A3, A4, B1, B2, B3, B4; two larger rectangular glass mirrors.
Object number: 2007-1-0084