Occultation reaction timer

Made:
1950-1975 in Luton
maker:
Horace Edward Dall
Occultation reaction timer

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Occultation reaction timer
Science Museum Group
© The Board of Trustees of the Science Museum

Occultation reaction timer

Details

Category:
Astronomy
Object Number:
1987-528/32
type:
measuring devices, timers and personal property
credit:
Dall, H.