| Year | 1921 |
| Date | 20-Oct |
| Volume | 45 |
| Issue | 1,069 |
| Page | 336 |
| Category | Radio Engineering |
| Part | |
| Title | Latest Wireless Information |
| Author | |
| Notes | Swedish Wireless Press. Leafield Wireless. The Wireless Society of London. Imperial Wireless Scheme. Radio Telephony in the Baltic. North African Wireless |