RICH.d MELVIN Fecit An unusual 19th Century Blue Slate SUN DIAL inscribed F. Dickson Upton June 10th 1854 with further inscription beneath and detailed calibrated dial; the corners set with four additional dials marked Morning, Afternoon, Evening and Night.  With a centre cut-out gnomon and solid corner pieces (one missing) 35cm by 31.5cm - on stone base