Historical clue formulations

• Some Deco works — 2026-08-05
• Some Art Deco works — 2024-04-09
• Some Deco pieces — 2024-01-19
• Some Deco collectibles — 2019-04-13
• Many 1920s Harper's Bazaar covers — 2017-09-16
• Some Deco illustrations — 2015-07-15
• Some Deco works — 2014-12-28
• Some Deco pieces — 2013-11-08
• Some collectible lithographs — 2013-10-25
• "Symphony in Black" and others — 2012-11-18
• Some collectible Deco drawings — 2012-08-05
• Some Art Deco pieces — 2011-12-13
• Some lithographs — 2009-03-05
• "Symphony in Black" and others — 2007-12-15
• Some art prints — 2007-05-24
• The sculptures "Rigoletto" and "La Tosca," e.g. — 2007-03-16
• Some Deco works — 2006-01-29
• Some Art Deco works — 2005-06-14
• Some Art Deco pieces — 2005-05-24
• Some Deco pieces — 2004-10-15
• Certain Art Deco works — 1997-06-29
• Popular Deco lithographs — 1997-04-02