class                          wheel arrangement                           fleet number (s)                               manufacturer                             serial numbers                                  year made                              quantity made                         quantity preserved
0   mallet and simple articulated locomotives  mallet and simple articulated locomotives  mallet and simple articulated locomotives  mallet and simple articulated locomotives  mallet and simple articulated locomotives  mallet and simple articulated locomotives  mallet and simple articulated locomotives  mallet and simple articulated locomotives
1                                           z                              2 - 6 - 6 - 2                                3000 - 3015                                    baldwin                                30566…31557                                       1907                                         16                                          0
2                                       z - 1                              2 - 6 - 6 - 2                                3100 - 3105                                    baldwin                                34389…34483                                       1910                                          6                                          0
3                                       z - 2                              2 - 8 - 8 - 2                                4000 - 4004                                    baldwin                              34382 - 34386                                       1910                                          5                                          0
4                                       z - 3                              2 - 8 - 8 - 2                                4005 - 4025                                       alco                                52839…62472                         1913 , 1917 , 1920                                         21                                          0
5                                       z - 4                              2 - 8 - 8 - 2                                4500 - 4503                                       alco                              64373 - 64376                                       1923                                          4                                          0
6                                       z - 5                              2 - 8 - 8 - 4                                       5000                                       alco                                      67578                                       1928                                          1                                          0
7                                       z - 5                              2 - 8 - 8 - 4                                5000 - 5011                                    baldwin                                61292…61495                                       1930                                         11                                          0
8                                       z - 6                              4 - 6 - 6 - 4                                5100 - 5120                                       alco                              68760 - 68780                                1936 - 1937                                         21                                          0
9                                       z - 7                              4 - 6 - 6 - 4                                5121 - 5126                                       alco                              69540 - 69545                                       1941                                          6                                          0
10                                      z - 8                              4 - 6 - 6 - 4                                5130 - 5149                                       alco                                70143…71962                                  1943 - 44                                         20                                          0

Table as JSON:
{"class":{"0":"mallet and simple articulated locomotives","1":"z","2":"z - 1","3":"z - 2","4":"z - 3","5":"z - 4","6":"z - 5","7":"z - 5","8":"z - 6","9":"z - 7","10":"z - 8"},"wheel arrangement":{"0":"mallet and simple articulated locomotives","1":"2 - 6 - 6 - 2","2":"2 - 6 - 6 - 2","3":"2 - 8 - 8 - 2","4":"2 - 8 - 8 - 2","5":"2 - 8 - 8 - 2","6":"2 - 8 - 8 - 4","7":"2 - 8 - 8 - 4","8":"4 - 6 - 6 - 4","9":"4 - 6 - 6 - 4","10":"4 - 6 - 6 - 4"},"fleet number (s)":{"0":"mallet and simple articulated locomotives","1":"3000 - 3015","2":"3100 - 3105","3":"4000 - 4004","4":"4005 - 4025","5":"4500 - 4503","6":"5000","7":"5000 - 5011","8":"5100 - 5120","9":"5121 - 5126","10":"5130 - 5149"},"manufacturer":{"0":"mallet and simple articulated locomotives","1":"baldwin","2":"baldwin","3":"baldwin","4":"alco","5":"alco","6":"alco","7":"baldwin","8":"alco","9":"alco","10":"alco"},"serial numbers":{"0":"mallet and simple articulated locomotives","1":"30566…31557","2":"34389…34483","3":"34382 - 34386","4":"52839…62472","5":"64373 - 64376","6":"67578","7":"61292…61495","8":"68760 - 68780","9":"69540 - 69545","10":"70143…71962"},"year made":{"0":"mallet and simple articulated locomotives","1":"1907","2":"1910","3":"1910","4":"1913 , 1917 , 1920","5":"1923","6":"1928","7":"1930","8":"1936 - 1937","9":"1941","10":"1943 - 44"},"quantity made":{"0":"mallet and simple articulated locomotives","1":"16","2":"6","3":"5","4":"21","5":"4","6":"1","7":"11","8":"21","9":"6","10":"20"},"quantity preserved":{"0":"mallet and simple articulated locomotives","1":"0","2":"0","3":"0","4":"0","5":"0","6":"0","7":"0","8":"0","9":"0","10":"0"}}