class, though they were slightly heavier. They could burn any light fuel, coal or wood as available, and entered service in 1886, soon after the WMR started operating. In 1908, with the purchase of the company by the NZR, they were also awarded the V classification. In 1885, Baldwin Locomotive Works built New Zealand's fourth batch of Prairie locomotives. These were to become the NZR N class. Six were delivered in 1885 and were of an almost identical design to the previous, but altered to utilise off-the-shelf components supplied by Baldwin. In 1901, four more were built for the NZR, but these were fitted with piston valves actuated by Walschaerts valve gear. In 1891, two of these locomotives had also been built to the same design for the WMR. In 1908, with the purchase of the WMR by NZR, all of these engines were classified as N class. Between 1894 and 1904, four similar engines were built by Baldwin for the WMR. In 1908, these became the NZR's NA class and NC class, with two units each. The NZR's Addington Workshops joined the list of Prairie suppliers in 1889, producing the first of two NZR W class tank engines. These were followed between 1892 and 1901 with eleven similar NZR WA class tank engines. Baldwin followed this up with ten similar NZR WB class Prairie tank engines in 1898. In 1930-31, after nearly thirty years of 4-6-2 Pacific and 4-6-4 Baltic locomotive production, New Zealand dusted off its Prairie plans with the release into service of twenty-four NZR C class 2-6-2 locomotives, designed primarily for shunting and branch line work. Poland The H. Cegielski Metal Works in Poznań produced 122 OKl27 class locomotives for the Polish State Railways (PKP) during the period between 1928 and 1933. Between 1951 and 1954, Fablok built a series of 116 Ol49 class 2-6-2 tender locomotives for the PKP. Romania Romania designed the 131.000 Class to replace the older Hungarian MAV locomotives used on Căile Ferate Române (CFR) secondary lines. A total of 67 locomotives were built at Reşiţa Works between 1939 and 1942, numbered 131.001 to 131.067. Russia & Soviet Union In Russia, the 2-6-2 was the standard passenger locomotive. They were represented by the pre-revolutionary S (С) (Sormovskij) series and the post-revolutionary Su (Су) series locomotives, the latter of which appeared in 1928. The pre-revolutionary S-series locomotives had the characteristic pointed nose, absent