Brilliant, thanks very much Wendy, I had initially thought that it was Acer rubrum, but my book said that the back of the leaves should be white...
Thanks, no samaras this year perhaps too small/shady.[ATTACH]Will go back for an overall picture.
Small coppiced tree in my local park with tri-lobed leaves, but the back is not silvery. I can get more pictures if required or higher quality....