Scale: Unknown. A model depicting part of the process of manufacturing a scarph chock anchor, made entirely of iron. The model shows an irregular ovoid-shaped lump of iron, with a smooth flattened face, and a less distinct smooth area on the underside. Attached to one end of the ovoid lump, and extending from it, is a long, tapering, four-sided bar, slightly irregular in shape. The bar terminates to a point. A paper label is attached to the flat surface marked "11". On the smooth underside part "2" is inscribed and again, less distinctly, on a rough part of the lump.