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The two Blockhouses in the Amstel River outside Amsterdam, built in 1651 to defend the city after William II's failed attack on Amsterdam on July 30, 1650. Several boats are visible on the water. A view of the De Joffer windmill and the Zuiderkerk can be seen between the houses.
printmaker: Caspar Jacobsz. Philips (mentioned on object), Amsterdam
based on a drawing by Jacobus Versteegen (mentioned on the object)
The paper is slightly discolored and has the familiar creases.