The Perkins kids. Once upon a time Polly and Peter Perkins were regulars in the magazine Pictorial Review. Pictorial Review was published from 1899 until 1939 when it merged with The Delineator. Polly and Peter's first issue was May 1933. They were in a total of 12 issues with the final being November 1934.
Illustrated by Gertrude A. Kay. I have not found anything online about Ms. Kay other than she also illustrated several children's books.
Click on image to see it larger. Paper doll people didn't need this instruction. They're already voraciously clicking and saving.