chronographic tuning fork
Date: 1889-1893
Inventory Number: WJ0043
Classification: Tuning Fork
Subject:
Maker: Charles Verdin (fl. 1880 - 1900)
Maker: Rudolph Koenig (1832 - 1901)
Supplier: James W. Queen & Company (1853 - 1893)
Cultural Region:
Place of Origin:
Dimensions:
6.5 x 60 x 12 cm (2 9/16 x 23 5/8 x 4 3/4 in.)
Description:
A long, steel tuning fork is fixed on a mahogany base. An electromagnet rests in the middle of the two tines. Its position can change slightly by sliding it. A contact point registers the vibration of the fork, which was set at 10 VD (or vibrations doubles).
Signedon base, stamped: CHLES. VERDIN - PARIS / REPRÉSENTED BY / JAMES W. QUEEN & CO. / PHILPHIA - PA.
on plate under coil: CHLES. VERDIN - PARIS / REPRÉSENTED BY / JAMES W. QUEEN & CO. / PHILPHIA - PA.
on brass coil support, stamped: CHLES VERDIN / A / PARIS
on fork: RK
on plate under coil: CHLES. VERDIN - PARIS / REPRÉSENTED BY / JAMES W. QUEEN & CO. / PHILPHIA - PA.
on brass coil support, stamped: CHLES VERDIN / A / PARIS
on fork: RK
Inscribedon fork: 10 VD
Historical AttributesThis instrument is found in Hugo Münsterberg's 1893 Psychological Laboratory of Harvard University document. It is thus listed: "121. Electrical tuning-fork of ten vibrations. By Verdin, Paris. $30."
See online reproduction here.
See online reproduction here.
Primary SourcesHugo Munsterberg, "Psychological Laboratory of Harvard University," pamphlet of 1893. See Harvard University Archives HUF 715.93.72
ProvenancePsychology Department, William James Hall, Harvard University.