Sellers (p. 396) opines that the first of the Gosset/Wedgwood medallions were "probably" marketed in white creamware; then, after 1768, in black basalt, and after 1774 in white-on-colored jasperware. In the company archives at the Wedgwood Museum are a number of examples of the firm's 18th-century portrait medallions and plaques of Franklin. They can be viewed on the museum's website: www.wedgwoodmuseum.com