The frame of the octant is ebony with brass furniture and ivory inlay.
The large majority of wood-frame octants were made in Britain by only a few makers who then marked their instruments with the name of the retailer. The name Escutcheon has been removed from the horizontal brace on this instrument, but the labels of W.H. Dodge, South Street, NYC, and his successor, Robert King on Front Street are still fixed to the inside of the box. Dodge was a well-known supplier to the New York clipper ship trade in the mid-19th century.
The box has been repaired and has seen many years at sea. Boxes were often poorly-made and were often replaced by subsequent retailers or owners. The trade in used instruments was brisk in this era. The frame of the octant is ebony with brass furniture and ivory inlay. A classic.