Former Owner
- Raphael Nathan Nata Rabinowitz1
- Raphael Yitzchak Yisrael1
- Raphael de Mediolano1
- Raul A. Villagran1
- Raymond Oliver1
- Raṅganātha Marāṭhe (Son of Mayūreśvara)12
- Reginald Harvey Griffith1
- Reiss & Son1
- Rendell1
- Renzo Rizzi libri antichi1
- René Antoine Thoué1
- René Henry1
- Rev. Frederick Collins Wilson1
- Rev. J. Duncalf1
- Rev. T. Barnes1
- Ricardo, Conde de Benahavis Heredia1
- Richard Ashurst Bowie1
- Richard Bennett3
- Richard Blount1
- Richard Coffin1