Postcard photo of non-dining car meal service on the Frisco Railroad. Some railroads served meals on trays in coach cars at a less expensive price than those served in the dining car.
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Not mailed or dated. This is a linen card, which was a popular style in the 1930s to early 1950s. The people in the photo appear to be circa 1930s or 1940s and the train car they're in looks to be a heavyweight, non-streamliner one. Likely circa 1930s to 1940s.
The card has no copyright markings on it as can be seen in the links above.
United States Copyright Office page 2 "Visually Perceptible Copies The notice for visually perceptible copies should contain all three elements described below. They should appear together or in close proximity on the copies.
2 The year of first publication. If the work is a derivative work or a compilation incorporating previously published material, the year date of first publication of the derivative work or compilation is sufficient. Examples of derivative works are translations or dramatizations; an example of a compilation is an anthology. The year may be omitted when a pictorial, graphic, or sculptural work, with accompanying textual matter, if any, is reproduced in or on greeting cards, postcards, stationery, jewelry, dolls, toys, or useful articles.
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