Postcard photo of en:Marlene Dietrich promoting her performance at Las Vegas' Sahara hotel. The dress she's wearing was referred to as the "nude dress" because it gave the illusion that Dietrich was wearing a very thin gown and nothing underneath it. The engagement there was in 1953 and she was paid $30,000 a week, the equivalent of $279,000 (rounded) a week in 2018, a very substantial rate for a performer at the time, and now as well.
Date
Not mailed but says to affix four cents postage. If the card was oversize, it would need to have first class postage. en:History of United States postage rates First class postage was 4 cents from 1958 to 1963; postcards were 4 cents from 1958 to 1963. Circa 1958 to 1963 based on postage rates.
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.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
{{Information |Description=Postcard photo of en:Marlene Dietrich promoting her performance at Las Vegas' Sahara hotel. The dress she's wearing was referred to as the "nude dress" because it gave the illusion that Dietrich was wearing a very thin...