Here is a link to a complete set of postcards featuring sketches of Disneyland’s Bear Country Jamboree. They feature the art of master Imagineer and Animator Marc Davis (one of my favorites). I have a few postcards lying around the house here that I got when I was a kid in a vending machine in Bear Country (the area now called Critter Country). They also sold in the park a set of postcards of Pirates of the Caribbean. Please check them out.
The site is disneylandpostcards.com and it features a historical collection of postcards from “the Happiest Place on Earth.” Also check out the conceptual art postcards from the Disneyland Gallery.
