- Morse code operator - Railway employee - Railway worker - A man whose business is to manage or display signals;
especially, one employed in setting the signals by which railroad
trains are run or warned.
- “Help Wanted” announcement? - ABBA hit - Appeal for help when there is nothing on board - Beatles’ concerto success lasts for Help! - Call for help - Call for help (1,1,1) - Call for rescue (1,1,1)
- A speck - Could Otto include decimal point? - Decimal point - Don’t forget direction ... point! - Dorothy or Mark? - Dorothy’s concise point? - Fleck