18th century over-lifesized terracotta statue of Neptune, half cleaned (laser)

14th-century statues of kings (limestone) during laser cleaning

Silver coin before cleaning

Silver coin after laser cleaning

Detail of Liverpool cenotaph (bronze) before removal of overpaint

Detail of Liverpool cenotaph (bronze) after laser removal of black overpaint

Limestone panel on 12th-century Romanesque frieze during laser cleaning

Detail of 19th-century Chinese basket lid during laser cleaning

Detail showing carved figures on doorway during laser cleaning

Detail showing carved figures on doorway during laser cleaning

Laser removal of pollution layers from sculptural detail (Cologne Cathedral)

Gilded carving (Cologne Cathedral) during laser cleaning

Egyptian ushabti box (gesso on wood) before cleaning

Egyptian ushabti box after laser cleaning

Statue of Eros (aluminium alloy) before restoration

Statue of Eros after laser cleaning and restoration

Grass basket from Malawi, Africa, during laser cleaning

Detail of limestone carving on exterior of St George's Hall before cleaning

Detail of limestone carving on exterior of St George's Hall after laser cleaning

Terracotta & stoneware figures on pediment during laser cleaning

Terracotta statue of mother & baby during laser cleaning

Plaster model for bronze war memorial during laser cleaning

Gilded cockerel during laser cleaning

Detail of medieval alabaster knight during laser cleaning