This collage is only known to the estate through a 35mm slide from 1961.
The orientation (top) and dimensions are indicated, but not a title. It has the same dimensions as C60-2, and the slide was made at the same time. So it is likely they are contemporaneous. This marks an early use of sprayed paint droplets, a favored technique in many collages. The use of a plywood based is presumed, but not verified.