bridge key
Dateearly 20th Century
Inventory Number0284
ClassificationSwitch
Subject
Maker
Jules Carpentier
1851 - 1921
User
Harvard Engineering School
1918 - 1951
Cultural Region
Place of Origin
Place of Use
Dimensions10.3 × 15.9 × 13.6 cm (4 1/16 × 6 1/4 × 5 3/8 in.)
Material
DescriptionTwo keys with locks with upper and lower contacts on each key. Mounted on hard rubber posts. Rectangular hard rubber base.
Signedbase marked: J. CARPENTIER PARIS;
bottom of base numbered: 3230 24;
plaque on base: Harvard University 1160
InscribedBase marked "J. Carpentier Paris" Bottom of base numbered "3230 24"
FunctionUsed to create and break an electrical circuit.
ProvenanceFrom the Harvard University Engineering School removed to this collection November 1956.
(tag reads "Engin Sch")
Laboratoire de Physique, Faculté Libre de Lille
Date: circa 1885
Object number: DW0092
American
Date: late 19th-early 20th Century
Object number: 0391
Morris E. Leeds & Company
Date: 1899-1903
Object number: 0386
Radcliffe College
Date: late 19th-early 20th Century
Object number: 1998-1-0608
American
Date: late 19th-early 20th Century
Object number: 0383
W. Watson & Sons Ltd.
Date: circa 1885
Accessories: oculars (2 pairs): B and D; objectives in marked canisters (4): 1/4, 1/2, 1, 3 inches; condenser with iris diaphragm; rotating wheel diaphragm; iris diaphragm; set of 4 disk diaphragms in brass box; triple nosepiece; live box; prisms for Wenham binocular system (2); stage for simple microscope with rotating wheel diaphragm; vulcanite stage; spare knobs (2); parts box; case
Object number: 1249
American
Date: late 19th-early 20th Century
Object number: 0385
