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Six inch ivory sector by John Cail

1825-1848

Instrument in box, by John Cail

1855-65

Spirit level with magnetic compass in case, by John Cail, Newcastle upon Tyne, 1820-29. Used by George Stephenson on the Manchester and Liverpool Railway survey in 1829

Combined spirit level & compass, British, 1820-1829

1820-1829

Daglish's siphon pressure gauge for mine ventilation made by John Cail, Newcastle uopn Tyne

Daglish's siphon pressure gauge for mine ventilation made by John Cail

Safety lamp, Glover and Cail, Mueseler type, from Mr. Glover, maker: John Cail, marking: makers name, 1852

Safety lamp

1852