Here are four more UP postcards that were once paired but have been divided along the perforations. The first one shows a hand-colored and heavily retouched photo of Boulder Dam. Since the dam began operations in 1936, the postcard must date no earlier than that year. The postcard is based on this photo by aerial photographer Robert Spence.
The backs of all these cards have the UP’s Overland Route logo, which dates the card between 1933 and 1941. Thus, this card must have been issued between 1936 and 1941.
The second card shows the Mormon Temple and Tabernacle in Salt Lake City. The third looks north from the approximate current location of Walnut, California. Mt. San Antonio is still there, but the orange groves are long gone.
The last card shows a Kaibab white-tailed squirrel, a rare animal that is found only in the pine forests on the North Rim of the Grand Canyon. UP featured it in some of its children’s menus. I’m pretty sure the tree the squirrel is on is standing (meaning the card should be rotated to the left), but UP labeled the postcard as if it were lying on the ground.