All-Clad, it has the typical serrated blade, but it sports an enlarged, rounded tip that is for serving (perfect for a tasting, but my guests usually aren't so hungry that I need to serve slices right off the knife!).
The most bizarre feature is it's handle which is just like a piece of All-Clad cookware: long, heavy, indented, with a hole for hanging. A little research turned up All-Clad's line of Tools, all featuring this "distinctive handle design." A tomato knife is one of those things I just skip: I use my bread knife. I could see this being a silly gift for a tomato aficionado, but I can hardly imaging buying it for myself. I'd rather save my $20 to put toward a fancy Texas Tomato Cage to hold up my bounty. • Buy the All-Clad Tomato Slicer (ChefsCatalog.com, $19.99)