Note: Sydney Town Hall Grand Organ by Hill & Sons is the world's largest entirely mechanical pipe organ and it is one of only two full-length 64′ organ stops in the world (the Contra-Trombone in the pedal), the other being in Atlantic City. Reference: Sydney Council website, Wikipedia and youtube Format: Negative Find more detailed information about this photograph: acms.sl.nsw.gov.au/item/itemDetailPaged.aspx?itemID=404779 Information about photographic collections of the State Library of New South Wales: acms.sl.nsw.gov.au/search/SimpleSearch.aspx From the collection of the State Library of New South Wales www.sl.nsw.gov.au