Cal Expo Amphitheater, Sacramento, CA 5/19-21/92

The Pony Express theme used for this three-piece set of puzzle passes take the viewer back to the early days of California history. These always look like there should be a fourth piece, but the puzzle is complete as shown.

 

The individual pieces measure 3⅝" x 2½" and the entire pass measures 5" x 7¼"