Looks like waves but they are clouds.
Bette Davis in fur
Colorized picture of Joan Crawford as Miss Sadie Thompson in “Rain”, 1932
Barbara Stanwyck having a nosh on the set
Clark Gable
Robert Donat in “The 39 Steps”, 1935
Robert Armstrong flips the bird in “The Lost Squadron”
Clouds
Ajax by Henri August Calixte Cesar Serrur, 1820
MATTHEW'S ISLAND 