In Halifax Harbor, Nova Scotia Canada sits one of the more unique Second World War era museum ships: the HMCS Sackville. The Sackville was one of 123 Flower Class Corvettes to serve with the Royal Canadian Navy during the Second World War. As of this writing it is the last of its kind.
Corvettes are small multi-role ships that for centuries have served as a key component of the world's naval powers. Dating back to the Age of Sail, corvettes have traditionally been smaller than frigates; but larger than offshore or coastal patrol craft.