Wedgwood and Bentley black basalt medallion moulded with Dr Woodward, circa 1775

Dr Woodward was a natural philosopher. Here is a link to his entry in the Royal College of Physicians Biographies 

Impressed “Wedgwood & Bentley” on the back

Dimensions: 3 ¼” by 2 ⅝”

Condition: Some minute chips to the edge