By 1824, he had executed 70 busts in marble of which 20 were of colossal size. His colossal bronze statues of Blücher are 13 feet in height, and he also executed the greater part of the 12 statues in iron which compose the National Monument for the Liberation Wars on the Kreuzberg, near Berlin. One of his finest works is the group Faith, Hope and Charity, which he presented to his native town, Arolsen.