Event Recorder

Observational Systems, Inc., Seattle, Washington


about 1980

Black metal case, Model 05-3, ten toggle switches, 30 buttons on face, 25-pin socket I/O on back, missing power chord, in original shipping box from Obs. Systems for repair in 1986 (shipping invoice placed in object file) Serial no. 3784.

Overall: 5 1/4 x 10 x 3 in. (13.335 x 25.4 x 7.62 cm)

Hood Museum of Art, Dartmouth College: Allen King Collection of Scientific Instruments, Hood Museum of Art, Dartmouth College



North America, United States


20th century

Object Name

Scientific Instrument: Calculation


Scientific Instrument

Scientific Instrument - Calculation

Not on view


Department of Biological Sciences, Gilman Hall, Room 111, Dartmouth College; transferred into the Allen King Collection of Scientific Instruments, January 2008.

This record was created from historic documentation and may not have been reviewed by a curator; it may be inaccurate or incomplete.

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