Three Wedgwood & Bentley Jasper Portrait Medallions

Three Wedgwood & Bentley Jasper Portrait Medallions, England, c. 1775, each oval in a solid blue with applied white relief, one depicting Samuel More, lg. 3 1/4; and two set in gilt-brass frames: Albrecht Von Haller, medallion size lg. 2 1/8, and Nicolas Boileau-Despreaux, medallion lg. 2 1/8 in.; impressed marks.
The Spak Collection of Wedgwood sold to benefit the Florida International Uni