Signboard of Space
| First published | December 1939 |
|---|---|
| Type | Short Fiction |
| Length | Novelette |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| December 1939 |
|
Thrilling Wonder Stories, December 1939 | Better Publications, Inc. | MAGAZINE | 12 |
| May 1950 |
|
Startling Stories, May 1950 | Better Publications, Inc. | MAGAZINE | 80 |