Here's another bean that showed up this year. It was in a patch that were already a cross, (Deseronto Potato x Blue Lake). I've been growing them out for a few years as they are a "navy bean" but pole not bush. They are productive and dry down faster than Deseronto Potato which is a terrific bean but so large I sometimes have trouble getting them dry enough to store without going mouldy.
Looking at my records, this one would be either (Deseronto Potato x Blue Lake) x (Blue Lake x Cherokee Trail of Tears) OR (Deseronto Potato x Blue Lake) x (Annelino Giiallo x Cherokee Trail of Tears), in other words the bean in the first post above. Believe it or not, those pods started off purple and faded to green as they ripened. I've never seen that happen before. You can see they dried to a standard tan. The beans, though - the beans are grey marbled. I've never seen a bean that colour/pattern combination. The bad news is this is an F1 so no guarantee I will see it again next year. Still, there's a lot of beans in that lineage, and I'm looking forward to seeing what comes out of it. They seem very resistant to the yellow mosaic virus that ravaged the beans earlier, and the anthracnose that is ravaging them now. Of course, as an F1, I expect to see a lot of variation on that front next year too.