Historical clue formulations

• "6 Rms ___ Vu" (1972 play) — 2015-01-28
• Ohio or Colorado: Abbr. — 2012-05-20
• Colorado, e.g.: Abbr. — 2011-03-06
• Colorado or Delaware, e.g.: Abbr. — 2010-01-03
• See 90-Across — 2008-03-09
• Connecticut or Colorado: Abbr. — 2007-08-23
• "6 Rms ___ Vu" (play) — 2002-01-16
• Bank site: Abbr. — 2001-06-09
• Columbia, e.g.: Abbr. — 2001-01-11
• Mo. or Miss. — 1998-04-19
• Kind of "vu" in a classified — 1997-07-21
• "6 Rms _____ Vu" — 1995-04-23