on which dates were locomotives entered into service?
1 dec 1953, 30 oct 1953, 18 jan 1954, 13 jan 1954, 8 feb 1954, 21 jan 1954, 25 jan 1954, 22 feb 1954, 11 mar 1954, 10 feb 1955
how far did they travel?
463,514, 492,650, 462,871, 440,810, ?, 406,288, 446,167, 402,026, 426,074, 476,489
and on which date did the locomotive which traveled 402,026 enter service?
22 feb 1954