1. RP 7713 Reference (shelfmark): RP 7713 Title: Scope & Content: CLUSIUS, Carolus. Autograph Letter Signed from Carolus Clusius (Charles de L’Ecluse) to Matteo Caccini Creation dates: 25 September 1608 Collection Area: Western Manuscripts Languages: Undetermined Date Range: 5 Apr 2001 Extent: 2 photocopies