"When the Last Goodbyes Are Whispered," unused and undated, but clearly the First World War era. Illustrated Postal Card & Novelty Co., New York.
Art work by Archie Gunn, 1863-1930. Here is biographical information from AskART:
Archie Gunn was a well-known and popular illustrator, whose pictures were in leading periodicals. He was born in England and his father was a member of the British Royal Academy. He first studied under his father in London. For a time he designed costumes for Gilbert & Sullivan productions. He also achieved success as a portrait painter; one of his portraits of Disraeli hung on the walls of Queen Victoria's apartments.
After coming to America he worked as a magazine and newspaper illustrator. He also did several calendar paintings for the Gerlach Barklow Calendar Company.