
archive.org/stream/ancientcrossesot00blig#page/n146/mode/1up
“This stone is in the parish of Sithney, on the property of C.W. Popham, Esq., of Trevarno. It was formerly a logan-stone, but was thrown off its balance in the time of Cromwell, by Shrubshall, then governor of Pendennis. – The stone is 11 feet long from east to west; depth 4 feet. Men Amber is a corruption of Men-an-bar, which signifies, the top stone.”
Image credit: J T Blight – Ancient Crosses and other antiquities in the west of Cornwall.