Fortifications of Brielle. Another few days of work in Rotterdam and a night in Brielle. I had already done the oil rig sketch that evening, so I made another sketch while waiting for dinner in restaurant Floor. The little house is the "kruithuis", located on the fortified walls, where the gunpowder was stored. Not within the citywalls, as you can understand. Vestingwerken van Brielle. Ik had eerder op de avond al de boorplatform schets gemaakt, en tekende dus maar de vestingwerken tijdens mijn diner in restaurant Floor.