The Albus Dumbledore Chocolate Frog Card can be found in the trunk underneath the table in "The Journey to Hogwarts".
Description[]
| “ | Considered by many the greatest wizard of modern times, Professor Dumbledore is particularly famous for his defeat of the Dark Wizard Grindelwald in 1945, for the discovery of the twelve uses of dragon's blood and his work on alchemy with his partner, Nicolas Flamel. | ” |