1. RP 7127/9 Reference (shelfmark): RP 7127/9 Title: Scope & Content: OUGHTRED, William. Marginal notes attributed to Sir Issac Newton from 'Clavis Mathematicae …', 1652. (item 1070) Creation dates: 17th - 18th centuries Collection Area: Western Manuscripts Languages: Undetermined Date Range: 12 Apr 1999 Extent: 2 black and white prints & 7 photocopies