- - Tracing of words in smoke by an aircraft
- - Words formed by plane's smoke trail
- - Messages created by planes
- - Message made by pilots
- - Gives an airing to what's close to The Sun's view - is that leaving a message we can all look up to?
- - Message from heaven?
- - airborne advertising that debuted in 1922
- - Aerial text, or the asterisked clues' answers?
- - Unusually striking way to avoid a commercial overhead?
- - Outmoded advertising technique
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