Skip to main content
bar magnet
bar magnet

bar magnet

Date1890-1930
Inventory Number1997-1-1289a
ClassificationMagnet
Subject
    Cultural Region
      Dimensions2.3 × 4.6 × 46.1 cm (7/8 × 1 13/16 × 18 1/8 in.)
      Material
        DescriptionFour magnetic cast steel bars connected together by two iron ends.
        Signedsigned (but partly illegible)
        Inscribedstamped on one bar: CAST STEEL WARRANTE
        Curatorial RemarksThe signature appears to be something like this: O'LE_____ & SONS
        FunctionFor the experimentation or use of magnetism.
        ProvenanceFrom the Department of Geology, Harvard University, 5 Feb 1969.
        bar magnet
        English
        Date: 1890-1930
        Object number: 1997-1-1289b
        bar magnets
        American
        Date: circa 1800
        Object number: DW0117
        magnetic iron wire and bars in box
        American
        Date: 1875-1925
        Object number: 0374a
        5 bar magnets for Beall's compass deviascope (correcting magnets)
        Henry Hughes & Son, Ltd.
        Date: 1900-1915
        Accessories: loose fin; instruction manual for instrument is in box of disassembled parts
        Object number: DW0141i
        horseshoe magnet
        American
        Date: 1875-1925
        Object number: 0374b
        horseshoe magnet
        American
        Date: 1875-1925
        Object number: 0374c
        magnet bar with needle pivot  in wooden case
        French
        Date: circa 1715
        Accessories: wooden case
        Object number: DW0369
        horse-shoe magnet with rolling armature
        Philip Harris & Company, Ltd.
        Date: circa 1950
        Object number: 1997-1-0639
        8 bar magnets "1" and "2" for Beall's compass deviascope (disturbing magnets)
        Henry Hughes & Son, Ltd.
        Date: 1900-1915
        Accessories: instruction manual for instrument is in box of disassembled parts.
        Object number: DW0141j
        Robison's ball-ended magnet
        American
        Date: 1900-1950
        Object number: 1997-1-0663b