Beautiful! She have a V comb? Kinda? Duccles have them, I think. But they don't normally come in white, and I think Silkies are recessive white, so the other breed is either dominant white or carrying recessive white. I know that doesn't decide anything, but I think it means that the other breed has to be able to come in white.
in my opinion she looks like a sultan Silkie cross.... Sultans are in both standard and bantam and both have v combs and also have feathered shanks and five toes just like the Silkie... this is a picture that i gotten from www.feathersite.com