Cast Iron Leap Frog Mechanical Bank. Original mechanical bank in very good condition. The item “Cast Iron Leap Frog Mechanical Bank” is in sale since Monday, March 25, 2019. This item is in the category “Collectibles\Banks, Registers & Vending\Mechanical Banks”. The seller is “imeddie01″ and is located in Oconomowoc, Wisconsin. This item can be shipped to United States.