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Original Text (Annotation: EPW020343 / 1442631)
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Four car unit Watford Joint Stock.
Delivered in about 1920 and partly owned by the LER (Underground) and partly by the LNWR (later LMS). The WJS did not enjoy a long service life due to poor reliability. They were replaced from about 1931 by Standard Tube Stock. A few units were retained for service on the LMS Rickmansworth (Church Street) and Croxley branches for a few more years.
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