Well, not too quickly on Oxenhope Station (in fact the clock appeared to have stopped).
Some volunteers were giving the station a pretty thorough 'clean and brush up' - but - shock horror - they missed something - see extra..
I noticed this clock was made by W. Potts & Sons, Leeds. They joined Smiths of Derby in 1933. Smiths maintain the Dent Clock at St.Pancras station.