Electric Conveyor (Dumper) Hoppers - Sewalls Point

[NW Modeling List]

Hi Guys,

Has anybody come across any reference material for the 13 or so Electric 
Hopper cars that were used at Sewalls Point for discharging coal into ships.

I am looking to build a large scale model and need blueprints, drawings and 
photos.

many thanks in advance.

Bob Sumsion

Oxford
England

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