Fifteen:

5 ship citations (0 free) in 4 resources
Fifteen (London, 1853, Sail; ON: 20303) Subscribe to view
Fifteen (Recreational; Port of Columbia, IL; built 2012; 8 gross tons) Subscribe to view
Fifteen (sternwheel steamboat) Subscribe to view
Fifteen (Yarmouth, 1901, Steam; ON: 111087) Subscribe to view