There is also the Lofthouse Landrace Fava that can be seen at Experimental Farm Network.
@Branching Out if you look at the photo, you can see that the beans are wildly different.
I recently came across a youtube presentation by Carol Deppe (can't remember where atm) where she expressed the desirability of nonconformity in the traits that do not matter because it shows genetic diversity. She said that when she was striving to get a solidly bush version of Beef-Bush Brown Resilient with all brown beans, she found that it was not as robust/healthy or productive as the one that threw a small percentage of yellow beans.
I think it was this video (it is chaptered, but the names of the chapters were obviously done by someone that didn't understand the content):