An early 19th Century ebony and brass octant signed indistincly on the index arm Egnaler & Co. Liverpool?, with double pin-hole sight and slide, four shades, mirrors, framed vernier scale, tangent screw and clamp, with inset bone scale, divided 0°-95°, on three brass pillar feet in shaped mahogany case with trade label - 13¾in(35cm)wide