Autumn Fungi - can anyone identify it please

Growing in the lawn of of our newly acquired area of garden.

I haven't been able to identify it yet. I have picked it and photographed the back so I'll add a link here later. There are several others growing so I might get another at an earlier stage of growth than this one.

A morning for beginning to sort out paperwork - I got as far as creating piles of paper on Saturday afternoon (I can only cope with so much at a time). I'll need to go back to the job tomorrow when I'm feeling fresher.