NZR W class
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The NZR W class of two steam locomotives were built at the Addington Railway Workshops in Christchurch, New Zealand by the New Zealand Railways Department. W 192 can still be seen in operation at the Ferrymead Herritage Park in Christchurch.
Almost all subsequent tank locomotive classes built by NZR were classified as sub-classes of the W class, e.g. WA, WAB, WB. The only exception was the Y class.