Last seen in:
- Thomas Joseph - King Feature Syndicate - Oct 17 2023
- The Guardian - Speedy crossword No 1,380 - Mar 13 2022
- The Telegraph - QUICK CROSSWORD NO: 29,191 - Oct 25 2019
- The Telegraph - QUICK CROSSWORD NO: 568 - Apr 14 2019
- Thomas Joseph - King Feature Syndicate - Nov 12 2018
- The Times - Concise - Sunday Times Concise No 1541
- L.A. Times Daily - Feb 14 2016
- The Times - Concise - Times2 Concise 6918 - January 9, 2016
- Eugene Sheffer - King Feature Syndicate - Aug 27 2012
- The Times - Concise - Times2 Concise 4315 - September 8, 2007
Related Clues:
- Big name in communications history
- Writer returns with plea before tea to put message into code
- Secret way of writing
- Thing to be cracked
- Samuel with a telegraph code
- Key developer of communications
- Dashing inventor?
- With 44-Down, 'key' invention of the 1830s
- Form of communication that's a little bit incomplete
- -- --- .-. ...
- Inventor whose name is spelled out by the horizontal lines of special characters in this puzzle
- Noted code developer
- "Tru" Tony-winner Robert
- Put in cipher
- Samuel ---, code inventor