Trofimova (p. 55) believes that the Achilles representation on the obverse of this coin of Pyrrhus is a form of Alexander Imitation. This grows out of and supports her argument in her second chapter regard ‘The Influence of Portraits of Alexander on the Hellenistic Iconography of Achilles’ (p.33-58).
An earlier post on this coin and others on Pyrrhus generally.
Liv Mariah Yarrow 