Clauss made some wide blades and most all Clauss’ are great shavers, very well hollow ground and finished.
I have a few wide ones, will have to dig them up, I want to say 7/8, but larger than 5/8 at least.
Here is an 11/16 old post on Strazors, note the hollow belly grind on that puppy. Some folks say Case made them for Clauss.