Barred Hollands -
Large fowl and lays White eggs...
http://purelypoultry.com/holland-chickens-p-644.html
http://www.sandhillpreservation.com/catalog/chickens.html
Chris
Are you looking for Large Fowl or Bantams?
Production Blacks should lay a Brown to lightly tinted egg...
Cuckoo and Barred Leghorns I think are the same.
Chris