Former Owner
- R. Stora and Company1
- Raoul Léonor Lignerolles1
- Renzo Rizzi libri antichi1
- Rev. Frederick Collins Wilson1
- Ricardo, Conde de Benahavis Heredia1
- Richard Blount1
- Riddagshausen Abbey1
- Robert Charles Winthrop1
- Robert Forrer1
- Robert Garrett3
- Robert Hoe III45
- Robert Lehman5
- Robert Williams1
- Robert de Hangest2
- Robert de Mol1
- Rolls1
- Royal Monastery of Saint Mary of Guadalupe1
- Rudolf Busch1
- Rush Hawkins1
- Rushton Mather Dorman1