The only chickens that i can think of that have a crest, and feathered feet are silkies, and sultan. Where did you get her? Are you sure she was purebred?
What color eggs did she lay if she layed white it could be one of these two
Silver Polish
http://www1.istockphoto.com/file_thumbview_approve/368596/2/istockphoto_368596_silver_polish_chicken.jpg
Mottled Houdan
http://www.poultryclub.org/graphics/Houdans.jpg