I've only ever seen the Brahma's with the feathered legs and their bodies fluffier.
EE's have that color of legs and can be any color feathers, but other chickens have dark legs too.
It almost looks like a silver penciled variety from the pattern, but I can't see it all that clearly.
But the only ones I know of are cochins (not that because leg feathers), wyandottes & rocks but their legs are both light.
So, yeah, I have been no help!
What type of comb?