Roberts 1921 The boilers were made by Fernihough and Son of Dukinfield and operated at 160psi. Roberts, A S (1921). "Arthur Robert's Engine List". Arthur Roberts Black Book. One guy from Barlick-Book Transcription. Archived from the original on 23 July 2011. Retrieved 11 January 2009.
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Roberts 1921 The boilers were made by Fernihough and Son of Dukinfield and operated at 160psi. Roberts, A S (1921). "Arthur Robert's Engine List". Arthur Roberts Black Book. One guy from Barlick-Book Transcription. Archived from the original on 23 July 2011. Retrieved 11 January 2009.