The Sierra Pack’age’ Trip Tri-Fold brochure was probably printed in the early 1960s. It’s the first time I have run across a California or Sierra Nevada brochure for guided jeep tours. The company is referenced both as “Jeeps, Inc.” and as “Sierra Tours by Jeeps, Inc.”.
This 3rd page only has print on one side. It’s a flyer that was stuck into the brochure.