Dolgoch, Tywyn Wharf station, Thurs 25 August 2011 1.   Dolgoch is  an 0-4-0WT and is original to the Talyllyn, having been supplied in 1866 by Fletcher Jennings of Whitehaven (63 / 1866).  They had also supplied 0-4-2ST Talyllyn (42 / 1865), which was in traffic at the time of my visit but which eluded me.