Former Owner
- Philip C. Duschnes Rare Books & First Editions1
- Philip van Alfen1
- Phillip J. Pirages Fine Books & Manuscripts2
- Poor Clares1
- Prince Augustus Frederick, Duke of Sussex1
- Quinton Edward Gurney1
- Québriac family1
- R. Stora and Company1
- Ramsau Monastery1
- Renzo Rizzi libri antichi1
- Robert Forrer1
- Robert Hoe III1
- Robert Lyle1
- Robert Williams1
- Robert de Hangest1
- Rush Hawkins1
- San Cristoforo alla Certosa (Church : Ferrara, Italy)1
- San Francesco1
- San Sisto, Piacenza2
- Sandbergs Bokhandel2