Historical clue formulations

• Forward, as mail — 2021-12-27
• Forward — 2017-06-08
• Forward — 2014-05-25
• Option after a transmission failure — 2012-05-02
• Forward — 2009-07-12
• E-mailing option — 2009-04-05
• Forward — 2000-12-03
• Dispatch again — 1999-05-16
• Forward — 1998-12-16
• Forward — 1995-04-15