| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| April 1938 |
|
Doc Savage, April 1938 | Street & Smith Publications, Inc. | MAGAZINE | 109 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| April 1938 |
|
Doc Savage, April 1938 | Street & Smith Publications, Inc. | MAGAZINE | 109 |