I think mine was Tapping the Admiral in Camden.
http://www.pubsgalore.co.uk/pubs/72375/ A super find in an area where I have done the pubs to death and ale choices are limited. Recently reopened after several years closure (it was the Trafalgar Tavern which I had never ventured into before), now has 8 ales with some interesting guests. Pleasant ambience. CAMRA discount. Reasonable Thai food. A newly discovered little nugget 5 mins walk from the Camden Lock/Market area. Will certainly make that a future destination pub when I am in the area as I quite often am.