Vreugdenhil's list and ships sold in 1649

Vreugdenhil's list, published in 1938, gives the names of a number of ships as having been sold or discarded in 1649. One of these was named Neptunus (or Neptunis). Since the ship used by Michael De Ruyter as his flagship in the summer of 1652 was the Neptunus, that suggests that some or all of the ships listed may have re-entered service. The Neptunus that was commanded by Jan Pouwelszoon in 1652 and Adriaen Jansz den Gloeyenden Oven in May and June 1653 was in service as one of the 36 cruisers funded in 1651. I now suspect that these 36 ships were probably ones that had been sold after the peace treaty in 1648 and were repurchased, rather than having been in reserve and simply reactivated.