For sale, a Late Eighteenth Century Mahogany Stick Barometer by Gilbert of London.A simply designed yet beautifully robust example comprised of a solid mahogany backboard with domed top and base. The inset bone scale plate is engraved with weather indications to the left and and a scale to the right measuring 27 to 31 inches of barometric pressure with a sliding Vernier incorporated for fine measurement. The head of the scale is simply engraved with the maker�s name of Gilbert, London to the top and a brass dome above to secure the head of the barometer tube. The exposed barometer tube runs the full length of the body into a half globe mahogany cistern cover with brass travel screw protruding underneath.During the eighteenth and early nineteenth centuries, the Gilbert family of Tower Hill carried a huge reputation, rivalling that of the Dollond and Ramsden for their skill of manufacture. The first family member to come to prominence as a scientific instrument maker was Joh...