Palomar Observatory 75th Anniversary Promotional Poster
Palomar Traditions (Deco) Promotional Poster
Big Eye (Pulp) Promotional Poster
Palomar Observatory Architecture Promotional Poster
Open Late (Googie) Promotional Poster
Hale Telescope Cutaway Drawing Poster, by R. W. Porter
Hale Telescope Looking Northwest Poster, by R. W. Porter
The Hale Telescope Promotional Poster
Menace from Space (Comic) Promotional Poster
The Samuel Oschin Telescope Promotional Poster
Map of the Sky Poster
