U.S. and Worldwide Stamps
April 28-29, 2010
| Images | Description | Current Bid |
 | Lot #524 COSTA RICA 1940 Pan-American Health Day, without overprint, blocks of four, each with red "Specimen" of "Muestra" overprint, also with control punch, n.h., v.f.  SCatalog #191-95S | Price Realized $260.00 |
 | Lot #525 COSTA RICA 1940 Pan-American Issue, blocks of four, each stamp overprinted "Muestra" in red or black, n.h., v.f. SCatalog #191-95S | Price Realized $260.00 |
 | Lot #526 COSTA RICA 1944 San Ramon, blocks of four, each stamp with red "Specimen" overprint, also with control punch, n.h., v.f. SCatalog #233-37S | Price Realized $210.00 |
