I found one of these among the items I inherited from a favorite aunt of mine and did not have a clue what it was. It was not with her silverware, so I wondered if it was some type of torture device. Upon research, I learned it was a harmless Prong Roast Carving Fork.
Rococo by Dominick and Haff (12 3/8 inches)
Adolphus by Mount Vernon
Berain by Wallace (10 3/4 inches)
Stradivari by Wallace (10 1/2)
Violet by Wallace