I've just been given a tour of Russborough House in Co. Wicklow which is owned by the Beit Foundation. Sir Alfred Beit was enormously wealthy (a fortune - and a major collection of paintings - inherited from his father) and bought Russborough in the early 1950s. He was an enthusiastic photographer and in his twenties and thirties made many 3D photographs - in both colour and black and white - which are amazing. This picture shows one of his early 3D cameras. Well worth visiting Russborough to see these pictures: http://www.russboroughhouse.ie