Like Pickle Forks, Olive Forks come in two tine and three tine varieties. Here are some examples of the the three tine variety. There are also long and short handle examples shown.
Chippendale Old by Alvin (7 1/4 inches)
Watteau by Durgin (6 inches)
Knickerbocker by Gorham (8 inches)
Ribbon by Wendt (8 3/4 inches)