I posted earlier on Grapefruit spoons. These are usually easily recognized because of their pointed bowls (to pierce the pulp of the fruit). On some of the more elaborate patterns, the design will be carried to edges of the bowl.
Iris by Durgin (6 inches)
Hanover by Gorham (5 7/8 inches)
La Parisienne by Reed and Barton (5 7/8 inches)
King Louis by International (6 inches)
Heraldic by Gorham/Durgin (6 inches)
Holly by Tiffany (5 7/8 inches)