There are two versions (that I have seen) of the coin front top casting. On one version, which is also seen on the Rol-A-Tor, the coin front casting has a liberty head coin at the top, closest to the mouth of the horn of plenty.
On other models, at that same coin position, the coin is a shield, similar to the reverse of the 1868 US nickel.
Does anyone know if there was a reason for the change, or when exactly they used each of the variations
Thanks much