Thread: W&B with an unusual bellied grind, anyone seen its like before?

Hi, I was lucky enough to get to go through the collection of an elderly gentleman who picked up razors through the 70s and 80s but has since had them all tucked away into a closet for the past twenty years. One of the razors he had that I purchased from him was a Wade & Butcher 13/16 with black horn scales and an unusual grind to the blade. I was hoping someone here might give me more information on it, what it would be called, and such.

The blade has a belly or ridge running down its length. Above this belly/ridge the blade is ground down thinner so I do not think one would call this a concave grind but perhaps that is the closest match. I do not think anyone would call this a faux frameback. The belly/ridge on the face side is a fraction lower than on the back side but I assume this is accidental and not intentional and just a result of the handmade quality of the grinding work. How would this grind be made? Perhaps with grinding wheels horizontally instead of vertically and the blade run down between them?

The belly/ridge does give the blade some stiffness, it feels like a wedge when shaving, but overall the razor is quite light, like a full hollow ground. I very much like the razor because of this stiffness combined with light weight and am surprised more razors were not made in this fashion.

Does anyone else have a razor similar to this and what do you call yours, concave grind, something else? Thanks for any replies and information!