One of two carved oak medallions thought to represent James V from the ceiling of the King's Presence Chamber in Stirling Castle, c. 1540

One of two carved oak medallions thought to represent Mary of Guise or Margaret Tudor, from the ceiling of the King's Chamber in Stirling Castle, c. 1540

Carved oak medallion depicting a dancing child, from the ceiling of the King's Presence Chamber in the palace in Stirling Castle, c. 1540, probably the work of a French carver

Uniface gold medallion of Constantine II, Roman Empire, AD 318 (?)

Maiolica medallion decorated with a grape harvesting scene in polychrome: Italian, Siena, painted by Ferdinando Maria Campani, 1747

Portrait medallion in biscuit porcelain showing the head of Walter Scott, signed 'Henning F. 1808', in an oval wooden frame: English, 19th century

Portrait medallion of James Hutton, M.D., in opaque white glass on blue glass ground, in a black oval frame: Scottish, by J. Tassie, 1792

Medallion or plaque of blue and white jasper ware decorated with Apollo, Marsyas and Ampelus: English, Staffordshire, Lane End, by John Turner's Factory, c. 1762 - 1786

Medallion of lilac and olive jasper ware with white figures in cameo: English, Staffordshire, Etruria, by Wedgwood

Medallion of black and olive jasper ware with white figures in cameo: English, Staffordshire, Etruria, by Wedgwood

Medallion depicting the Virgin and Child in bas-relief on a blue ground, with a border of modelled leaves coloured green and yellow, maiolica or tin-glazed terracotta: Italian, Florence, Andrea or Giovanni della Robbia, c. 1490 - 1520

Ivory medallion carved in relief with the head and shoulders of a nobleman: English, late 17th to early 18th century

Oval ivory medallion with a bust of a young girl, three-quarter face, facing right: German, attributed to Johann Christoph Ludwig von Lucke, c. 1760

Medallion of white metal, depicting the DH Comet DH88 Grosvenor House, that won the London to Melbourne air race in 1934

Handmade - Championing the Handmade Work, kiln-formed and engraved glass medallion, concave, exterior surface yellow with black and blue brick pattern, interior opaque grey with spots showing background colour, engraved figure in gold gilding wax with oversized hands, on stainless steel cord: Scotland, Corsock, Amanda Simmons, 2012

Medallion, layered opaque white glass, cell formations sandwich a translucent turquoise disc, suspended by a knitted wire cord with clasp: England, Kingston upon Thames, Tracy Nicholls, 2012