Scale: Unknown. A model depicting the method of manufacturing a common anchor, 1829, and made entirely in iron. The model shows a tapering bundle of irregularly sized and shaped iron rods, square in section, and bound with two square, smooth-faced iron hoops. The bundle tapers to a long rod, also square in section, and itself tapering to a point. The rod is welded to the bundle and gives to impression of being formed from a single piece of iron. The surfaces of the bundle of rods appears to be painted black.