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In the late 1860s, four more of the 1 class where manufactured by Mort's Dock Sydney in 1870-71. Another four locomotives of the M.36 class were manufactured at Eveleigh Railway Workshops in 1876-77 using re-built tenders from Locomotive No.1-4. Two of the class later had cab shelters fitted to the tenders for suburban running.
Preservation
All engines of the class were scrapped in the period 1891-1904 with the exception of No. 78