This print by important American artist James Rosenquist (b. 1933) is titled "Pyramid Between Two Dry Lakes". It is an etching and aquatint with pochoir printed on Pescia Italia by Flatstone Studio, Tampa and published by Multiples, Inc., New York.

Signed and dated on the lower right, editioned 51/78 and titled on the lower left. The paper size is 22.5" h × 39.5" w and it has been professionally framed.
 
Framed the dimensions are 26.63"h X 43.5"w X 1.75"d