dip needle
Datecirca 1880
Inventory NumberDW0145
ClassificationDip Needle
Subject
Maker
American
?
Cultural Region
Dimensions11.5 × 10.2 × 3.2 cm (4 1/2 × 4 × 1 1/4 in.)
Material
DescriptionFrom Instrument Card:
Cylindrical brass ring with glass ends and needle supported on swinging frame in center. engraved silvered scale 0-90-0 degrees on 2 sides, loop wire handle folds around case.
Cylindrical brass ring with glass ends and needle supported on swinging frame in center. engraved silvered scale 0-90-0 degrees on 2 sides, loop wire handle folds around case.
Signedunsigned
Inscribedon obverse metal edge: 47/97 / PAT NOV 2 1880;
on reverse metal edge: MERIDIAN FINDR
Curatorial Remarks
FunctionIndicating inclination of the earth's magnetic field relative to the earth's surface. For measuring the dip of geologic beds.
ProvenanceDavid Wheatland purchased from the Ellis Memorial Antiques Show, 1965.
Barthélémy Urbain Bianchi
Date: ca. 1840
Accessories: housed in pine box
Object number: 5212
Edward Nairne
Date: 1765
Accessories: Small magnifying glass on end of box to assist in aligning the dip needle.
Object number: 0026
W. & L. E. Gurley
Date: 1950
Accessories: leather carrying pouch
Object number: 1996-1-0638
Kelvin Bottomley & Baird Ltd.
Date: circa 1910
Accessories: mahogany case
HUSUN catalogue (in instrument file)
Object number: 5335c
American
Date: early 20th-mid 20th Century
Accessories: wooden box to hold dip needles
Object number: 1998-1-1428
Henri Gambey
Date: circa 1835
Accessories: This needle is an accessory for 1990-2-0001a.
Object number: 1990-2-0001b
W. & L. E. Gurley
Date: circa 1900
Accessories: covers on each side
Object number: DW0540
Henri Gambey
Date: circa 1835
Accessories: cover (square wood frame with glass panes); spare needle in separate box stamped "8-22" (Inv # 1990-2-0001b)
Object number: 1990-2-0001a
C. F. Casella & Co. Ltd.
Date: circa 1920
Accessories: leather carrying case; long leather strap with brass loop at end
Object number: 5100