Elizabeth, Countess of Pembroke, and the Rt. Honble. George, Lord Herbert Math Eitemau Uwchlwytho gan Yale Center for British Art
Specimens of Rocks. Proof of an Illustration for Wright's 'Globe Prepared for Man'. Math Eitemau Uwchlwytho gan Yale Center for British Art
Elizabeth, Countess of Pembroke, and the Rt. Honble. George, Lord Herbert Math Eitemau Uwchlwytho gan Yale Center for British Art
By the table, Two old men Math Eitemau Uwchlwytho gan Sir Kyffin Williams - Tu ôl i’r Ffrâm – Behind the Frame
