Hmm.. you are impressed with 200 coins listed? Try to get book of Budaj Marek, ,,The Kosice gold treasure'', published in 2007. You will see almost 3000 gold coins in one book! Over 1000 of them are gold Dutch ducats only
2-1/2 cents 1905, bronze, weight - 4 g., size - 23,5 mm, mintage - 4000000 pcs. Utrecht Mint. Wilhelmina the Queen.
A very stylish way of writing the large 2. On the later ones, after ~1910, that digit had a less "artsy" look ... Christian
City of Campen (Eastern Netherlands). 6 stuivers (1612-1619), silver. Ruler: emperor Matthias ! (1612-1619).
5 cents 1850, silver .640, weight - 0,685 g., size - 12,5 mm, thickness - 0,76 mm, mintage - 3037000 pcs. Ruler: king William III (1849-1890).
To go from "small change" to "big money" in my Netherlands collection: Utrecht province 1793, Drie Gulden, 40 mm, 31.4 grams. This coin really is big. For size comparison i put a U.S dime next to it. The design is similar tot the issues from Holland province. Next to the hat on the spear there is a small shield at the top of the picture with an oblique line in it. This is the coat of arm of Utrecht province which defines its mint origin. If you see these offered on e-bay: beware ! most are fake.