Table:
text: Locomotives of the Southern Railway
(1850 1871)
(1850 1871)
Class_ Wheel_arrangement Manufacturer Year_made Quantity_made Quantity_preserved Years_withdrawn
Nile 2-4-0WT Nine Elms Works 1859 3 0 1882
Tweed 2-4-0 Nine Elms Works 1858–1859 6 0 1877–1879
Undine 2-4-0 Nine Elms Works 1859–60 12 0 1884–1886
Clyde 2-4-0 Nine Elms Works 1859–1868 13 0 1883–1899
Gem 2-4-0 Nine Elms Works 1862–1863 6 0 1884–1885
Eagle 2-4-0 Nine Elms Works 1862 3 0 1885–1886
Falcon 2-4-0 Nine Elms Works 1863–1867 17 0 1882–1898
177 2-4-0WT Beyer, Peacock & Co. (82) Nine Elms Works (3) 1863–1875 85 2 1886–1899, 1962
Lion 0-6-0 Nine Elms Works 1863–1873 38 0 1886–1900
Volcano 2-4-0 Nine Elms Works 1866–1873 18 0 1886–1897
221 0-6-0 Beyer, Peacock & Co. 1866–1873 24 0 1891–1924

Question: What year was the Undine class for Locomotives Southern Railway's 1850 1871?