A model of a ‘unicorn’ (Equus Caballus). Estimate: £4,000–6,000 ($6,200 - $9,300). Photo: Christie's Images Ltd 2015.

A sculpted polyurethane foam body with applied hide overall, fitted with glass eyes and resin 'horn' simulating narwhal and set on an ebonised plinth; 76 in. (193 cm.) high; 85 in. (216 cm.) long including horn.

Christie's. OUT OF THE ORDINARY, 10 September 2015. London, South Kensington