Original Eagle and Eaglets Mechanical Cast Iron Bank – J. Stevens & Co 1883. Antique original cast Iron, American Mechanical Bank. Stevens and Company, designed by Charles M. Henn of Chicago, Illinois and patented January 23, 1883. To operate this bank you place a coin in the Eagle’s beak, press the lever and the Eaglet’s rise from the nest, actually crying for food. (the bellows work and you do hear chirping) As the eagle bends forward to feed them, the coin falls into the nest and disappears in the receptacle below. This bank measures 6? High, the base is 6 3/4? By 4? Wide. Condition:: Very good, see all pics.