Silver crucifix decorated with niello and mounted on a plain ebony cross, found in a bed in Queen Mary's room at Craigmillar Castle, Edinburgh, 15th or 16th century

Stock-and-horn or touting-horn made from ebony turned on a lathe and decorated with ivory ferrules and insets, possibly an 18th century copy of an earlier horn pipe or shepherd's pipe, acquired by James Drummond of Edinburgh in the 19th century

Set of Highland bagpipes with chanter of ebony, ivory mounted, bearing the name of the maker, Duncan MacDougall of Breadalbane, a set of drones said to have been played at the Battle of Waterloo by George Mackay and at the entry of George IV into Edinburgh by James Mackay, and modern stocks

Set of Union bagpipes of blackwood, ebony and other hardwoods mounted with silver and ivory, presented by Lewis F. Innes of Ballogie to Robert Millar, with music book, made by Robert Reid, North Shields, 1830

Set of chamber bagpipes, or small pipes, consisting of three drones in a common stock, made of ebony, rosewood and laburnum mounted with bone and ivory, inscribed on mounts to Colonel Montgomery, 1757 and probably made in Glasgow, early - mid 18th century

Octant with 17" ebony frame and limb, brass index arm, inlaid ivory scale with diagonal divisions and ivory plate marked 'George Morris 1755', probably English, maker unknown, 1755

Octant (reflecting quadrant) for observing at sea, of ebony and brass, in a wooden box, made by Crichton of London, last used by Alexander McKay, master of the ship "Sydney" of Glasgow, sailing from Leith to Demerara in 1864

Octant with ebony frame with inlaid ivory scale, and ivory plate inscribed 'Thomas Hellyer 1774 Nairne London', made by Edward Nairne, London, 1774

Sounding quintant, 6 1/2 inch, marine sextant to measure horizontal angles, telescope for reading vernier missing, with Admiralty mark "HO 2", in hinged wooden box, made by Thomas Jones of London, c. 1800

Octant, incomplete, 12 inch, ebony frame and limb, brass index arm and fittings, ivory plates, Admiralty mark "E 12", in stepped oak box, possibly made by Thomas Jones of London, c. 1820

Quadrant, ebony frame and limb, black-lacquered index arm with brass stop, lacquered brass fittings, and inlaid ivory plates, signed and made by Spencer, Browning and Rust of London, c. 1800

Compound microscope made by J. Finlayson, Edinburgh, 1743, with an ebony stand with a divided drawer containing several accessories, in a mahogany case with a drawer containing mineral samples

Reproduction of an 18th century cross-staff in Sjofartsmuseum, Bergen, with a cross bar made of pearwood and scales engraved on an ebony centre bar, 1929

Octant, ebony frame and limb, brass index arm and fittings, ivory plates, and in oak keystone box, signed and made by David Stalker of Leith, c. 1870

Octant, ebony frame and limb, brass index arm and fittings, ivory scale and plate, in stepped oak box, initialed and made by Spencer, Browning and Rust of London, c. 1800

Octant, ebony frame and limb, brass index arm and fittings, ivory plate, in mahogany kestone box, signed and made or retailed by Thomas L. Ainsley of South Shields, c. 1850