Do you have pictures?

That is the pair that I kept, he has just started mounting my frizzle CB and silver Birchen CB hens that are also in there with them. The furness pullet hasn't started laying yet.

That is the younger cockerel. I am going to keep him too.

The pullet I kept as a chick.

The other pullet I had hatched, I sold her, and I lost the ladies number that bought her. Major regret.
All 4 started off with yellow down then the cockerels started feathering out black with color, and the females brown with color.