Auction 309-320
Switzerland
| Show all lots | 327 |
| Airmail | 47 |
| Campione | 1 |
| Cantonals (lots) | 28 |
| Forerunner | 2 |
| Officials | 5 |
| Pro Juventute | 15 |
| Pro Patria | 19 |
| Rayon | 1 |
| Rayon II | 8 |
| Se-tenant pairs, tete-beches | 1 |
| Sitting Helvetia imperf. 'Strubel' | 17 |
| Sitting Helvetia perf. | 7 |
| Soldier stamps | 12 |
| Standing Helvetia | 13 |
| Standing Helvetia, Numerals, UPU | 7 |
| Switzerland | 144 |