I think the 'ponies' were actually draught horses - although maybe not huge ones. The shoes that have turned up from time to time are pretty big. We have been told that the pads were supplied by colliery equipment merchants, and if this was the case, then there was probably a significant market for these in the pits. The Colley Hill mine, working until 1960, had a horse that wore one of these. Before farm mechanisation, the Colley Hill animals were shared with Colley Farm and used on the land. The Marden Mine for hearthstone at Godstone had horses that were kept in the village, pulled a cart of stone down to the mine owner's premises in the village at the end of the day, and the carter had a separate collar for use underground, which did not foul the roof or timbers in the mine.