Jason approaches the dragon guarding the golden fleece, and pours Medea's magic potion on it. Engraving by J. Boydell after R. Earlom after S. Rosa.

London (in Cheapside) : Publish'd according to Act of Parliament, by J. Boydell, engraver, Nov.r 2d. 1765.

1 print : engraving ; image 43.2 x 35 cm

Jason. From the original picture painted by Salvator Rosa, in the collection of the Right Honourable the Earl of Besborough ... dedicated by his lordship's most obliged and most humble servant, J. Boydell. Size of the picture 2F 6I in height, 2 1 wide. Salv.r Rosa pinxt. R. Earlom delin.t. John Boydell sculpsit. Bears number: No. 24

Wellcome Collection 2815049i

Dedicated to William Ponsonby, 2nd Earl of Bessborough, the owner of the painting: he was a member of the Society of Dilettanti and of the Accademia di Disegno of Florence