As noted yesterday, after 1932, Union Pacific dropped the word “system” from its logo, so these blotters date from 1933 or later. “The Overland Route” was removed from the logo in 1942, so these blotters from the Dale Hastin collection all date from before then. As usual, click an image to download a PDF of the blotter.
The Oregon-Washington Limited probably ended in about 1935, when the City of Portland joined the Portland Rose and Pacific Limited on the Chicago-Portland route. If so, this blotter dates to 1933 or 1934.
The Los Angeles Limited continued operating into the early 1950s, so this blotter could have been issued in any year from 1933 to 1942.
The Challenger was inaugurated in 1935 using existing coaches, and equipped with new coaches in 1936, so this blotter probably dates from the latter year.
Boulder Dam was a New Deal-era name for what is now Hoover Dam, so this blotter could date from anywhere during the 1933-1942 time period that the Overland logo was in use.