I have bought a second Mercian. This one is a King of Mercia, 531 comp-tubed F&F (plus headset and seat pin). It's a very nice example, 1994. The paintwork is in reasonable condition; lovely red with a white head tube and white bands on the seat tube. Gold lug-lining. Lots of braze-ons (but no pump peg!), raised head tube.
It'll be a bit of a project to build it up while I am off the bikes.