MOTHERWELL, Robert (American, 1915-1991). Primal Sign III. 1979/80. Color aquatint and lift-ground etching on Arches. Initialed and numbered lower right. Image 23 ¾ x 9 ¾. Sheet 28 ¾ x 20 ¾". Frame (glass) 33 x 25". Edition of 1/35. Printed by Catherine Mousley at the artist's studio, Greenwich, with the artist's blind stamp lower right. Published by Petersburg Press, New York. Belknap 236. Free sheet taped or hinged. Eleven very light rectangular marks show through to recto from adhesive at perimeter. Overall good condition. Not examined out of frame.