WO type iron ore waggon WO 31261 is one of a batch of eighty six built by WAGR Midland Workshops between 1967 and March 1968 with fleet number 147 for Koolyanobbing iron ore operations, with a 75 ton and 1018 ft³ capacity, seen here loaded with fines and having had the numbers re-painted, Binduli, 2nd June 2010.