The other week I made (using our fine breadmaker) a small wholemeal. Here is a picture of half of it. The other half looked exactly the same - at first.
Later that same day I came down from my ivory tower (also known as the spare bedroom) where I had been working at home to see this:
Yes, it really was as it appears, cut not just at an angle, but with a convex contour effect. Must have been one heck of a sandwich! I'll let the architect of the shape explain more in the inevitable comment - I love her dearly.