For your consideration is this nicely detailed Save the Children Noah's ark pin. It has giraffes, birds, bears and a child in a boat with hearts. It is in the original Hecht's company card. A sweet pin! It is marked Mexico 925.
The pin measures 2 and 1/4 inches by 1 and 3/8 inches.
It was cleaned but has evidence of the old patina. I can clean if requested. Card as shown.