The Oldenburg Class T 0 (originally Class VIII) were goods train tank engines operated by the Grand Duchy of Oldenburg State Railways. They were built specifically for branch lines, because four-coupled engines had proved uneconomical. Their wheelbase of enabled them to travel at up to . They were considerably more economical than the four-couplers. In 1885 four were built and two more followed in 1891.
See also Grand Duchy of Oldenburg State Railways List of Oldenburg locomotives and railbuses
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