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.
{{PD-US-no notice}} Unable to find notice of copyright on this image. Building demolished in 1950 so falls between 1928 and 1977, inclusive, without a copyright notice. Image from: https://www.stlhistoryandarchitecture.com/vandeventerplace/oj0ogmz6uqcrhikyf7kl460t2psyqc