W1889 World Allround Speed Skating Championships
W1891 World Allround Speed Skating Championships
W1893 World Allround Speed Skating Championships
WAmstel Brewery
WAmsterdamse Joffers
WArti et Amicitiae
WBibliotheca Rosenthaliana
WInternational Colonial and Export Exhibition
WJurjentje Aukes Rauwerda
WRoyal Asscher Diamond Company
WStelling van Amsterdam
WVuurtoreneiland