Title

Bradford'S hydrostatic instrument for measuring the specific gravity and therefore the purity, of a coin

Caption

Engraving depicting Bradford's hydrostatic instrument for measuring the specific gravity and therefore the purity, of a coin. Dated 18th Century

Date

18th century

Credit line

Photo12/Ann Ronan Picture Library

Reference

ARP23A16_030

License type

Rights managed

Available size

60,0Mb (3,8Mb) / 19,8in x 11,8in / 5947 x 3526 (300dpi)

Keywords

18th Century Engraving Engraved Illustration Illustrated Bradford Bradford's Hydrostatic Instrument Hydrostatic Instrument Instrument Hydrostatic Measure Measuring Gravity Physics History of Physics History of Science Science Purity Coin 18th Century