Thirty cars were built, twenty-six driving motor cars and four trailers. The E stock was based on the earlier C Stock and D Stock but differed in that the roof was elliptical rather than the clerestory roof of the C Stock and D Stock.
In the 1940s the C, D and E stocks were reclassified as "H Stock" (signifying hand-operated doors), along with other pre-1938 District Line rolling stock that had not been converted to have air-operated doors. The H Stock was largely eliminated by the early 1950s, following replacement by R Stock. The remaining cars were largely confined to the Olympia shuttle service. The last example was withdrawn in 1958; no E Stock car has been preserved.
They were generally similar in appearance to the B Stock, except that the E Stock had an elliptical roof.