This neat photo from 1959 of the front of the Hot Shoppes Inc. (later Marriott) HQ at 5161 River Rd was shared on the Bethesda Chevy Chase Back In The Day Facebook Group, by P. Wilson (Thanks!). The Georgetown Branch passed just behind the photographer, the siding that served the building was located just to the left of the building. In the distance to the right, we can see a boxcar spotted at the industry located next door on Landy Ln. I’m not certain what this industry was but they had a large loading hopper.
J. Willard Marriott and George Romney standing in front of the offices of Hot Shoppes, Inc. , 1959. Multimedia Archives, Special Collections, J. Willard Marriott Library, University of Utah, P0164 J. Willard and Alice Sheets Marriott Photograph Collection
https://collections.lib.utah.edu/ark:/87278/s6029bvz