The Secret Sentinel (Secret Service Operator #5, October-November 1936)
| First published | October 1936 |
|---|---|
| Type | Essay |
Publications (1)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| October 1936 | Secret Service Operator #5, October-November 1936 | Popular Publications, Inc. | MAGAZINE | 103 |