200-inch Dome Pastel by R. W. Porter Postcard
Palomar Mountain Observatory 1948 3¢ Stamp
Palomar Observatory Vintage Slides
Hale Telescope Looking Northwest Poster, by R. W. Porter
Hale Telescope Cutaway Drawing Poster, by R. W. Porter
Open Late (Googie) Promotional Poster
Palomar Traditions (Deco) Promotional Poster
Big Eye (Pulp) Promotional Poster
Palomar Observatory First Day Cover Envelope
Palomar Observatory Vintage Slides, Chain of 5
