Thank you. I'm seeing it so many different ways on breeder sites right now. I thought the correct use was Silverudd's Blue but I prefer Isbar also.He's gorgeous!
They were originally called Swedish Blue Isbars.. (ice bars) then the name was changed to honor the breeder who was developing them.
As far as I can tell.. Isbar is nostalgic term (and the one I like) and Silverudd's blue is the correct usage today.