U.S. and Worldwide Stamps
March 24-25, 2010
| Images | Description | Current Bid |
 | Lot #1261 MONACO Air Post Semi-Postals 1948 Bosio, eleven artist die proofs in various colors (eight signed), including three with unfinished designs, fine-v.f. group P Catalog #CB11-14P | Unsold |
 | Lot #1262 MONACO Air Post Semi-Postals 1948 Bosio, 5fr+5fr artist signed die proof, hand-colored, v.f. P Catalog #CB11P | Unsold |
