I am not here, but if I were I would tell you about a wonderful little booklet:
"The Search for Britain's Lost Unique Hill-Figure", being the revised and updated booklet published by Kenneth Cardrdus and Graham Miller in 1965.
It is obtainable by sending a cheque or potal order for £2.25 (which includes postage and packing) to W.G. & P. Miller, Heatherdene, Howey, Llandrindod Wells, Powys, LD 1 5 PN.
But as I am not here I won't !
VBB