On roughly this location, VEL594.5, mapping the various defense works along the coast line of Curaçao, shows a Fort Beverwijk. It is unclear whether this is exactly the same location as fort Graaf van Buren, of which no images are known to us.
Graaf van Buren, fort (Curaçao)
Graaf van Buren, fort Willemstad
Beverwijk, fort (Curaçao)