| Auction | Date | Lot number | Grade | Weight | Starting Price | Final Price | Comment |
|---|---|---|---|---|---|---|---|
| NAC 83 (collez. "of a student") | 20/5/2015 | 461 | BB+ | 8.10 | 30,000 CHF | 44,625 CHF | ex Sotheby's 4/11/1982 lotto 6 |
| Sotheby's (collez. Duke of Northumberland) | 4/11/1982 | 6 | BB | 8.13 | 2,500 GBP 3,094 EUR | 2,860 GBP 3,540 EUR |