AIRMAIL

7 recorded uses

Date	Clue
2020-11-25	Stamp on an envelope [and 16-Across flipped]
2018-12-28	Communication means since 1911
2015-03-30	Letters sent by plane
2013-05-03	Fast delivery
2011-09-15	Speedy delivery
1995-03-26	Kind of stamp
1994-03-18	Skywriting?