13-001A. EARLY 'HYDROSTATICAL GLASS BUBBLES' BY JAMES BROWN
English, early 4th quarter 18th century, with a trade label in the lid "Hydrostatical Glass Bubbles for Proving Spirits adjusted in the most accurate manner to the universally approved Scale Invented by the Maker James Brown GLASGOW." A complete set of 18 bubbles in its original 3" diameter x 7/8" thick turned mahogany case. A very fine early set by the inventor of the scale.
13-001B. 'HYDROSTATICAL GLASS BUBBLES' BY JAs CORTE
English, early 1st quarter 19th century, with a trade label in the lid "Hydrostatical Glass BUBBLES To prove Spirits by JAs CORTE, GLASGOW." A complete set of 12 bubbles in its original 2 7/8" diameter x 1 3/16" thick turned mahogany case.
