The Second-Richest Duck #15
| Series | Walt Disney's Uncle Scrooge |
| Number | #15 |
| Publisher | Dell Publishing Co., Inc. |
| Date | 1956-09 |
| Type | Comic Book, Softcover |
| Language | English |
| Artist | Carl Barks |
| Genre | Anthropomorphic |
| Published in | New York, NY |
| Pages | 36 |
| Characters | Scrooge McDuck, Donald Duck, Huey, Dewey, and Louie, Flintheart Glomgold, Gyro Gearloose, Morty and Ferdie |
| Notes | Scrooge goes to South Africa to match his wealth against that of Flintheart Glomgold, proclaimed to be the richest duck in the world. After comparing their wealth, Scrooge and Flintheart find that the title of richest duck hangs on who has saved the largest ball of string. They roll their string across open African country to determine whose roll is the longest. |