This Grade II listed building provided the power which drove the fans and pumps that kept the Glamorgan Collieries in Llwynypia functioning. It was at the centre of one of the most momentous episodes in our history - the Cambrian Combine Dispute which led to the Tonypandy Riots in 1910. Now it's up for auction. John Geraint Roberts believes it's a place that can play a part in our future too - but it needs saving and restoring in order to do that.