A series of 27 postcard were sold at Disneyland's Art Corner shop (in Tomorrowland) from 1957 to 1962. They are called "squeaker" cards because they have a devise inside that squeaks when you squeeze them. Some of the postcards were numbered, others not. All had the imprint, "Copyright Walt Disney Productions." Approximate dimensions: 3.5" x 5.5".
Dopey was one of the characters included in the series. "I'm Dopey - How are you!"
On the back side, the card reads, " Dopey doesn't say much, but he really enjoys Disneyland." Printed in Japan.
Art Corner Disneyland bag, courtesy of Dan Goodsell.
The Dopey postcard was also offered through a 1958 Disneyland mail-order catalog. Retail: 75¢ for set of five.
Special thanks to the Matterhorn via Stuff from the Park for use of his images and for providing additional information. Opposite side image via the late Ken Eslick's Disneyland Postcards.