Obverse: bas-relief profile portrait of George Gabriel Stokes; "GEORGE GABRIEL STOKES b. 1819," around perimeter; "G.W. de SAVLLES" at bottom. Reverse: laurel/olive wreath encircles "VIRO/ ILLVSTRI/ ET DE PHILOSOPHIA/ EGREGIE MERITO/ GEORGIO GABRIELI STOKES/ NEWTONI CATHEDRAM/ APVD CANTABRIGIENSES/ ANNVM IAM Lm. OBTINENTI/ ET SVA ACADEMIA/ ET MVLTAE ACADEMIAE/ SALVTEM AMICISSIME PREVANTVR/ TAM SIBI QDAM IPSI/ DE TALI VITA/ TANTO INGENIO/ GRATVLANTES/ KAL.IVN./ A.S. MDCCCXCIX."