I recently purchased a raincoat that is supposed to be for a 1950's 12 inch vinyl Shirley Temple doll but it is too large for mine. As I don't have a doll that this will fit I am thinking about selling it but would like to know if this is a genuine Shirley Temple doll accessory. I am including a photo and would appreciate any assistance.

There is a picture of the raincoat in "My Dolls" collection.