Watch List notes:

MYSIA. Kyzikos. Circa 350 BC. Stater (Electrum, 23 mm, 16.08 g). Head of Hera to left, wearing drop earring and mural crown, her hair bound up at the back, and with her sceptre's floral tip visible the crown of her head; below neck truncation, tunny fish to left. Rev. Quadripartite incuse square. Hurter & Liewald, SNR 81, 2002, p. 23, 2 and pl. 1, 2. Von Fritze -. Very rare. A lovely coin with an elegant and sober head of Hera, wearing an unusual mural crown. Good very fine.
From a European collection, formed well-prior to 2015.

Why is Hera wearing a mural crown? Could these be the walls of Olympus that Hera wore as the queen of heaven?