Inventory no. 25281 - Former Display Label
English 6-INCH SECTOR
c.1700
Ivory with brass hinge. Unsigned and undated, but probably by John Rowley. There are scales for Sin[es], Tan[gents], Num[bers], L[ines] and C[hords], together with graduations in 1/10ths of an inch along the edge.
[?Orrery Collection]
Other narratives:
- Orrery Collection in print
- Former Display Label - The Orrery Collection of Scientific Instruments
- Former Display Label - The Principal Makers of Instruments in the Orrery Collection