Before going to eBay, I'll offer these 6 Netherlands chips here, for sale here if the offer seems reasonable to me. I show both sides of the chips, all in very fine condition. These are all I have of these chips, got them from a friend in Netherlands. I have no idea of the value of them.
Most are from closed casinos. At least half are not in the ChipGuide. Below I show the names on the chips, denominations, links to casino at ChipGuide.
Casino Schimmelpenninck 50 --Netherlands closed
casino Maasbracht 10 50 --closed Netherlands
Casino Lotus 50 prob.Netherlands closed
Casino de Landgraaf 10 Started on September 16, 2017, Netherlands, Limburg
Holland Casino 1 euro Amsterdam, Netherlands