Emeryson Special?
It is indeed, and since that's all I asked for, the point is yours.
It is Coventry-Climax powered, and was built in 1961 for Ray Fielding, a British hillclimb specialist who duly won his class for that year. In another thread about a mystery Emeryson front-engined sports car from the 50s, "carnut" mentions this as one of the known sports-racers built by Paul Emery (there weren't many). I'm surprised it hasn't featured before.