Former Owner
- Prince Augustus Frederick, Duke of Sussex1
- Rafael Gomes1
- Raffaello de’ Medici1
- Raphael Nathan Nata Rabinowitz1
- Raphael de Mediolano1
- Reiss & Son1
- Renzo Rizzi libri antichi1
- Richard Bennett1
- Richard Heber2
- Richard Priestley1
- Robert Hoe III7
- Robert Oppenheim1
- Robert Villareal1
- Roger Martin1
- Ross Winans1
- Rudolf Graupner1
- Ruth E. Adomeit1
- Ruth Fowler Jarvis1
- Samuel Allan1
- Samuel P. Avery Jr.1