Sigmar Polke, At the Opera (Answer to the Question Whether Sponges Possess Consciousness); Untitled (Flowerpot); and Untitled (Griffelkunst 1988)

1973, 1985 and 1988
Three prints, comprising two offset lithographs and one screenprint in colors, on green flock paper, Schoeller-Turm board and board respectively, the full sheets.
At the Opera S. 17 7/8 x 24 1/2 in. (45.4 x 62.2 cm)
Untitled (Flowerpot) S. 19 1/2 x 27 3/8 in. (49.5 x 69.5 cm)
Griffelkunst S. 38 5/8 x 27 1/8 in. (98.1 x 68.9 cm)
All signed, Flowerpot numbered 28/120 in pencil (there were also some artist's proofs), At the Opera from the edition of 540, Griffelkunst from the edition of 940, published by Griffelkunst-Vereinigung Hamburg-Langenhorn e.V. and Edition Staek, Heidelberg respectively, one framed.