Details of individual letters:
1. Salzburg, 5 April 1902, 1p.Ms.
2. Montreux, 12 April 1902, 1p.Ms.
3. Montreux, 15 April 1902, 1p.Ms.
4. Montreux, 19 April 1902, 3p.Ms.
5. Montreux, 22 April 1902, 1p.Ms.
6. Montreux, 26 April 1902, 4p.Ms.
7. Montreux, 28 April 1902, 1p.Ms.
8. Montreux, 2 April (Maiy) 1902, 1p.Ms.
9. Montreux, 17 May 1902, 1p.Ms.
10. Montreux, 21 May 1902, 6p.Ms.
11. Montreux, 25 May 1902, 4p.Ms.
12. Montreux, 2 June 1902, 1p.Ms.
13. Montreux, 2 June 1902, 4p.Ms.
15. Montreux, 9 June 1902, 1p.Ms.
16. Montreux, 12 June 1902, 6p.Ms.
17. Montreux, 16 June 1902, 8p.Ms.
19. Lausanne, 1 July 1902, 1p.Ms.
20. Interlaken, 2 July 1902, 1p.Ms.
22. Crotto del Nino, 27 July 1902, 8p.Ms.
23. Crotto del Nino, 4 August 1902, 1p.Ms.
24. Lauterbrunnen, 10 August 1902, 1p.Ms.
25. Como, 11 August 1902, 3p.Ms.
26. Luzern, 16 August 1902, 1p.Ms.
27. Lago Maggiore, 20 August 1902, 1p.Ms.
28. Como, 21 August 1902, 1p.Ms.
29. Interlaken, 26 August 1902, 1p.Ms.
30. Como, 29 September 1902, 3p.Ms.
31. Venezia, 3 October 1902, 1p.Ms.
32. Venezia, 6 October 1902, 3p.Ms.
33. Venezia, 13 October 1902, 1p.Ms.
34. Venezia, 21 October 1902, 1p.Ms.
35. Venezia, 24 October 1902, 6p.Ms.
36. Venezia, 30 October 1902, 1p.Ms.
37. Venezia, 3 November 1902, 1p.Ms.
38. Venezia, 9 November 1902, 1p.Ms.
39. Venezia, 17 November 1902, 4p.Ms.
40. Venezia, 19 November 1902, 1p.Ms.
41. to Melanie and Libussa Reizes, 21 November 1902, 11p.Ms.
42. Venezia, 25 November 1902, 1p.Ms.
43. Venezia, 28 November 1902, 1p.Ms.
44. Milano, 29 November 1902, 1p.Ms.
45. Genova, 1 December 1902, 1p.Ms.