On a cold December morning in 1895, Harald Bing – director of the renowned Danish Bing & Grøndahl porcelain house – ordered his astonished workers to destroy the mould for a small blue-and-white plate produced to commemorate Christmas, so ensuring that the price for the plate would naturally increase should demand exceed supply. The piece, entitled `Behind The Frozen Window`, has been revered ever since as the world`s very first limited edition collector plate, and Bing unwittingly coined the popular phrase `breaking the mould`.