Photo of Patricia Donahue and Richard Denning from the television program Michael Shayne. Donahue played Lucy Hamilton, Shayne's secretary, while Denning played Shayne.
Date
There is a faint 1963 date stamp on back; the show originally aired on NBC in 1960.
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.