There are breeds other than Silkie that have extra toes to include Sultans (can probably rule this out since she doesn't have any feathering on her legs), Faverolles (again, can probably rule them out), Dorkings, and Houdans (probably a couple others I'm missing). Can you get a better pic of her comb? Preferably a straight on pic. It looks like a cross between two different comb types but hard to tell from the pic which ones.