A polished brass ladder frame vernier sextant (172mm radius), swivel magnifier, the main brass arc signed and numbered 'Nugent Wells Liverpool 3060', inset silver scale divided 5 -0 -170 , horizon mirror adjustable in azimuth and index mirror each with coloured shades, sun inverting and star telescopes, with range of accessories including magnifying lens in fitted keystoned-shaped mahogany carrying box, the top with applied brass plaque inscribed O. G. Johnson -- 310mm wide