Scale: Unknown. A model depicting part of the process of manufacturing a common anchor, made entirely in steel. The model shows how a fluke and its arm are made. The fluke itself is completed, a trapezium in section, tapering to a near point and its surfaces highly polished. The arm is attached to the wider end of the fluke and is broadly conical in shape. The arm is shown almost finished apart from the wider end which has yet to be hammered and beaten into its completed form. This area is rough and blackened, and there is a deep, irregular, U-shaped groove running along one side of the arm, underneath it, and back along the other side. The section of the arm that the groove circumvents is an irregular lump of iron to which is attached a long iron rod, square in section and tapering to a point. There is a double bend in the rod immediately adjacent to the arm, so that it curves around the face of the arm before extending outwards from it in the same plane as the fluke and arm. One face of the fluke is inscribed "4" and the polished surface of the arm is inscribed "I" and "3". The model is very similar, but not identical, to SLR2861.