A very rare and valuable model railway collection that was kept a secret for 40 years with the owners staff of full time technicians banned from speaking about it, has been donated to the Ipswich Rail Museum in Queensland. The collection, which is estimated to be worth millions of dollars, contains custom built models of famous locomotives including the "Mallard".
http://www.abc.net.au/news/2016-12-28/rare-model-train-collection-donated-ipswich-museum/8100116
http://www.abc.net.au/news/2016-12-28/rare-model-train-collection-donated-ipswich-museum/8100116