I was told by, Mr john sears, R,I,P, a authority on whitehackles, that every once in a very blue moon, you will get a white through back, it comes from the Cheshire pile blood of Dr, Bellyse, put into the lord Derbys, a very long time ago, long before Mr billy lowmans father had them, but I don't know, it was very nice to listen to anyway, I liked it and that's the one I am sticking to ha,ha,ha a,t,b. O,T,T