Heliostat

Danish Instrument Inventory text:

Heliostat. Manual. Wooden plate 230x230 to fit in window shutter. Upon this a brass plate 185x185 with a semicircular slit. 2 brass rods allow adjustment of outside mirror 190x75. The reflected sun light falls through a central brass tube.Ref: Det phys Cab vol2 p 66, pl 21 fig 1 etc.Not signedc1800 (g)

• Category: Light
• Hauch number: F03a
• Inventory number: 4970
• Danish Instrument Inventory number: 1688

• Hauch references:
• Begynd.grund: §309
• Cabinet 1: Bd.2 p.66, pl 21 fig 1

• Literature:
• Sigaud de Lafond : 2,1705
• The King George III Collection: D 66