Eiswerder

Eiswerder is an islet on the Havel River, north of the Spandau Citadel in Berlin-Hakenfelde, Germany. Covering an area of 14 hectares, it is accessible by two bridges that join the western and eastern banks of the Havel.
Like the Citadel of Spandau, the islet of Eiswerder was used extensively in the construction of armaments. In 1746, the Styrian Philip Schupfer became the owner of the islet. In 1817 he set up an incendiary bomb laboratory in the nearby citadel, which he moved to Eiswerder twelve years later, where a pyrotechnic laboratory of the military treasury had already been located since 1826.

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