MARK OF JOHN COX, LONDON, 1772

The arms are that of Trevenen probably for Rev. John Trevenen (1711-1797) steward of the Clowance Estate for St. Aubyn families. He attended Pembroke College, Cambridge, graduating in 1734. John returned to Cornwall to live at Lower Rosewarne near Camborne and, in 1740, married Elizabeth Tellam. The family drew their wealth from the mining industry.