Having had dinner at Lawry's the other night I can tell you what kind of knife they set their tables with for use on prime rib...
The same type of knife that comes in your household silverware set. Nothing with a fancy blade, not serrated or smooth.
But that was for prime rib that melts in your mouth.
That is a delightful looking meal, and I can easily see that that the rib is surrounded by au jus, not bloody juice. I mean THAT piece of meat is delightful looking, I have seen many others not so attractive. I could even eat that, or at least begin it by eating the outer part. Please let me, and my wife, have two minutes with a frying pan for the rest of it. And I don't intend to apologize for it, it's the way I like it, don't bother me with other opinions, hope you enjoy yours too.
But until this picture, I did not know, and am assuming, that the Lawry's restaurant you are eating at is connected to the Lawry's Seasoned Salt, which I always have in the cupboard, and is huge around here when grilling burgers. It seems like you see the Lawry's shaker next to the pepper almost every time.