Webster Signature Database - Suggest Correction

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Signature	Maker	Instruments	Comments	Location	References
ROBERTSON, JOHN	England, 1712-76, MIM	Table Sundial = Versailles 4/17/83.	invented an improved slide rule; F.R.S.; author of book on mathematical instruments, London, 1775.	Christ's Hospial, London (1748); Portsmouth Naval Academy (1755-66).	Taylor 2(300).
ROBERTSON, JOHN	England, 1712-76, MIM	Table Sundial = Versailles 4/17/83.	invented an improved slide rule; F.R.S.; author of book on mathematical instruments, London, 1775.	Christ's Hospial, London (1748); Portsmouth Naval Academy (1755-66).	Taylor 2(300).

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