Wooden backstaff/Davis quadrant

Davis quadrant horizontal view
Davis quadrant horizontal view
Credit
Royal Astronomical Society
Object Type
Backstaff or Davis Quadrant
RAS Reference Number
81
Other Reference Number
1908-158 (Science Museum number)
Category
Miscellaneous
Description

Wooden backstaff or Davis quadrant. A navigational instument with boxwood circular scales an inlaid boxwood plate and decorative stars and fleurs-de-lis stamped on the frame and arcs. The backstaff is fitted with a replacement Flamsteed Lens.

Producer (maker/artist)
Unknown
Associations
Davis, John, 1550-1605