Nr. 366. Dutch Louis XVI contra- bakbarometer, by A. en F. van Laun, Amsterdam, ca 1800.

Nr. 366. Dutch Louis XVI contra- bakbarometer, by A. en F. van Laun, Amsterdam, ca 1800. Mahogany veneered case in Louis XVI style. Decorated with tympan and vase. The tray on the bottom is also decorated with artful inlays. Pewter scale plates which are shielded by a glass door.Alcohol thermometer. The central tube / Torricelli tube and counter tube in English inches. The central tube also Rhineland inches The scale amplification of the counter tube is 1:7. The alcohol thermometer is in Fahrenheit and Reaumur. A fine weather instrument in totally authentic state. Signed on the pewter scale plate. H. 124 cm. Price on request.