Two Zeeland ships with similar names

The Visser and the Vissers Harder seem to be two distinct three-masted jachts or small frigates. Ron van Maanen says that the Visser was in service in 1665 and 1666. He says that the Vissers Harder was in service from 1664 to 1672. The Vissers Harder was in the West Indies with Abraham Crijnssen in 1667. The dimensions for the Visser were 96ft x 24ft x 10ft x 5-1/2ft. The dimensions for the Vissers Harder were 100ft x 26ft x 10ft x 5ft. The Visser carried 26 or 28 guns while the Vissers Harder carried 26 guns. The Visser had a crew of 75 to 105 men. The Vissers Harder had a crew of 105 men. The two ships were similar enough to cause us to wonder if they really were two different ships, despite the difference in size. Sources:

1. Ron van Maanen, unpublished manuscript "Dutch Warships 1600-1800", undated, but circa 1992