Historical clue formulations

• UPS unit: Abbr. — 2019-09-08
• Cardboard container: Abbr. — 2017-11-12
• U.P.S. unit: Abbr. — 2016-03-11
• Shipping unit: Abbr. — 2015-05-10
• FedEx unit: Abbr. — 2015-05-09
• U.P.S. unit: Abbr. — 2013-12-03
• Whse. sight — 2013-10-11
• Doz. eggs, commonly — 2009-03-25
• Box: Abbr. — 2008-10-31
• DHL delivery: Abbr. — 2008-08-07
• Shipping unit: Abbr. — 2007-01-05
• Cardboard pkg. — 2006-01-15
• Smoker's purchase: Abbr. — 2005-08-07
• Whse. unit — 2005-07-08
• Cigarette holder: Abbr. — 2003-08-29
• U.P.S. delivery: Abbr. — 2003-04-02
• Economical purchase: Abbr. — 2000-09-30
• UPS delivery: Abbr. — 1999-10-09
• U.P.S. unit — 1999-05-13
• Cigarette pkg. — 1999-02-05
• Bill of lading abbr. — 1998-10-03