Photograph of barometric compensation for new standard clock at the Royal Observatory

Photograph (7"x9") of a barometric compensation for the new standard clock at the Royal Observatory, Greenwich, supplied and E. Dent & Co. Ltd., Strand, London, UNited Kingdom, 1876

Details

Category:
Time Measurement
Object Number:
1876-76
Materials:
facsimile and visual resources
Measurements:
overall: 7 x 9 in.; 177.8 x 228.6 mm
type:
photograph
credit:
E. Dent and Company Ltd.