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Charles Burrell & Sons,     Thetford, Norfolk.    

Climax Manufacturing Co. Ltd.,     Corry, Pennsylvania, USA    

James Davidson & Co.,    Otago Foundry, Dunedin, NZ    

Heisler Locomotive Works,    Erie, Pennsylvania, USA    

Robey & Co. Ltd.,    Lincoln, England    

Thomas Robinson & Son Ltd.,    Rochdale, Lancashire, England