 The locomotives referred to, lots 613–616, were "Dolbadarn", "Red Damsel", "Wild Aster" and "Irish Mail".Before the bidding started, it was announced that Gwynedd County Council had placed a Preservation Order on the Gilfach Ddu workshops, and many items within it.The original connection between the quarry and the company's port at Y Felinheli was the Dinorwic Railway, a gauge line built in 1824.