PART III. Die Installation Errors:
Mules:
Mules involving pattern dies, various types
Definition: Mules are coins struck by mismatched dies.
This is a broad category (a genus?) that could encompass a variety of mule species. While little knowledge exists of any standard dies being paired with a pattern die, two possibilities are shown below.
A Chilean 100 pesos planchet struck with identical obverse pattern dies. It is believed this two-faced mule was struck in the Santiago mint.
Below is an outer ring meant for a bi-metallic coin from Chile. It too shows identical obverse pattern dies.
