Nice use of the Shotgun typeface designed by J. Looney for VGC. Seen here in two variants: Shotgun Loaded (solid) and Shotgun Doublebarrel (outline). The large number 4 uses another variant that is both solid and outlined.
Cris Gianakos designed this poster for an exhibition of four artists from Los Angeles: Joe Goode, Llyn Foulkes, Douglas Wheeler, and Alexis Smith. The show was held at the Visual Arts Museum, located at the School of Visual Arts. The show was held from April 14 through May 16 of 1975.