Excellent! But for $500 each, I'd expect it to have a few more "functions." Hmm... rasp teeth on the back, chisel at the end... that leaves us with two edges, the face, and the end of the handle...
How about a nice sharp scratch awl at the pommel end of the handle? A high dollar chisel like that, you shouldn't be hitting it with a mallet anyway. Of course, that might make paring a bit hazardous. But that's a small price to pay for innovation!