Dutch Van Emden thermometer, C 1840
An A. van Emden thermometer on a green painted wooden plate, C 1840. The mercury tube is fixed on a Silver plated scale. The scale is in Fahrenheit and Celsius. Length 35 cm
Abraham van Emden (1794 – 1860) was a scientific and navigational instrument maker in Amsterdam who after 1822 worked in the business of his uncles, scientific instrument makers Abraham and Jacob van Laun. From 1831-1850 this was situated in the Kalverstraat, opposite the Nieuwezijds Kapel, and thereafter in the Kalverstraat near the Jonge Roelensteeg.