Agnes Martin retrospective at Solomon R. Guggenheim Museum October 27, 2016March 13, 2017 / SarahKateRitchie View this post on Instagram Oh #agnesmartin your #paintings and #drawings are just exquisite. #artistretrospective 1950-2004 @guggenheim A post shared by Sarah Kate Ritchie (@sarahkateritchie) on Oct 26, 2016 at 5:51pm PDT