A London, Brighton & South Coast Engine 2-2-2 built by Robert Stephenson & Co. in 1864. The original number was 200, but was re-numbered to 490 By Tony Hisgett from Birmingham, UK [CC BY 2.0], via Wikimedia Commons
"It was the locomotive drivers and firemen who had the industrial muscle, though, and it was not long before a strike by 400 men of the London, Brighton & South Coast Railway became the first to result in train services being disrupted. They downed tools in March 1867 over their meagre daily pay, which was just 7s 6d for a driver and 4s 6d for a fireman. The company's attempt to recruit replacements failed and virtually all its services were stopped, including the lucrative race trains for the first spring meeting at Epsom."
Christian Wolmar. Fire and steam. London: Atlantic Books, 2007.
The Times 27 March 1867
The Times 28 March 1867
With thanks to Clive Vaisey, London for suggesting this topic.