It would seem my memory is not as sharp as I thought. It was twelve years ago when I visited Bayeux War Cemetery and saw the headstone in question and, having looked it up, the design is far more elaborate than I remember. The Essex shield is within a circle, the wording on the circle reads "Herts & Essex Yeomanry", the Hart stands atop the circle and below the circle is a scroll bearing the title "191Field Regt. R.A.". It's certainly an impressive design. Growing old is a curse.