A "wheel" Barometer with thermometer Louis XVI (1774-1791) carved and gilt wooden frame "Garlands and goats heads" watercoloured paper barometer dial, painted wooden thermometer dial French 18th C. (4th quarter) faults and defects, insufficient mercury dial with inscription MIEBEAU OPT. n A PARIS 1778 Dimensões (altura x comprimento x largura) - 112 x 41 cm