vintage fold out Valentine's Day heart card

This is a vintage Valentine's Day card circa 1930s. A large red heart with a little puppy shapes the front of the die cut card and it folds open to reveal a little boy tooting a horn. It reads "Hey Kid See - I'm Blowing You To A Valentine / Be Mine / I'm Yours."
A Made in USA stamp marks the front. Children's pencilled correspondence on the inside.

CONDITION

In good condition with wear consistent with age and use. Some little spots of wear on front and a small crease mark near the "Be Mine" heart. Some tone spotting on the inside.

MEASUREMENTS