Inventory no. 27956 - Former Display Label
English 9-INCH SLIDE RULE
c.1700
Ivory and brass. Signed, "I: Rowley. fec:"; Undated.
The rule was described by Thomas Wright in his catalogue of the Orrery Collection (1731) as "A 9 inch Ivory Sliding Gunter". The scales marked are M[eridian line], S[ines], T[angents], E[qual] P[arts], N[umbers] and C[hords].
[Orrery Collection, no. 22]
Lent by Christ Church.
Other narratives:
- Mathematical instruments by John Rowley
- Former Display Label - The Orrery Collection of Scientific Instruments
- Former Display Label - The Principal Makers of Instruments in the Orrery Collection
- Orrery Collection: 1731 Inventory
- Accession Record : Extract from Annual Report for 1925
- Orrery Collection in print