| Collection: | The National Geographic Society publications |
| Date: | 1939 |
| Publisher: | National Geographic Society for the National Geographic Magazine, Washington DC |
| Scale: | 1:20000000 |
| Author/Editor/Maker: | Grosvenor, Gilbert |
| Height: | 75 cm |
| Width: | 58 cm |
| Parsons Code: | K1 |
| Description: | Map / Chart / Plan |
