 The identity of these locomotives is difficult to prove, but the SAR diagram book for the Class NG2 gives dimensions which limit the possibilities to only three of the known Koppel imports.Two of these, Dickson works numbers 978 of 1897 and 1019 of 1898, had been delivered to the Lancaster Gold Mine in Roodepoort.That mine closed in June 1913 and the company was wound up in early 1915.