In the late 1930s Santa Fe’s passenger cars began to modernize with the introduction of the fluted-side Budd Passenger cars. Faced with integrating their smooth-side Pullman Standard cars into the consist, the company decided to repaint the cars silver with faux fluting details using black faded stripes to match the Budd cars. This was known as Shadow-Striping and remained on the cars well into the 1950s.