Untitled - History of the World - Study for a Mural

watercolour and graphite on paper boards
2.5 cms x 2.5 cms (1 ins x 1 ins)
Lot of four; 2 signed and inscribed '716 evans bldg. wash. d.c.' lower right; ; each measuring: [11.5 x 52.5 inches], [11.5 x 50.5 inches], [11.5 x 52.75 inches, on two paper boards], and [11.5 x 51 inches, also on 2 paper boards]; all framed; some yellowing and water damage noted