Here is a Butterick Pattern #P 448 UNCUT Child's Costume with instructions for making a Puppy Dog, Santa, Dinosaur, Tiger or Pumpkin in sizes 1, 2, 3, 4, 5, and 6.
Chest from 20 inches to 25 inches
The pattern and instructions are still factory folded. The envelope shows some wear and creases from age and storage that doesn't effect the pattern.