Two sand-glasses

Two sand-glasses, each of 30 minutes duration

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Two sand-glasses, each of 30 minutes duration
Science Museum Group
© The Board of Trustees of the Science Museum

Two sand-glasses, each of 30 minutes duration, mounted on a wooden stand which counts every other inversion of the glasses up to 30 (hours). Horne Type C. Second half of the 19th century. (B3190)

Details

Category:
Time Measurement
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
1991-225
type:
sand glass
credit:
Wellcome Trust