Uruguay
Print: Imprimex S.A.
| Country: | Uruguay |
| Type: | Postage stamps |
| Series: | Palace Cave |
| Nominal: | 20 $ |
| Year: | 2006 |
| Perforation: | Serpentine Die Cut 11½ |
| Mintage: | 200,000 |
Palace Cave
 "Gruta del Palacio" |  "Gruta del Palacio" |