The J. FALM Collection: Miniature Masterpieces of Greek Coinage depicting Animals Macedonia, Acanthus Obol circa 470-390, AR 0.44 g. Bull’s head r. Rev. Quadripartite incuse square. McClean 3131. SNG Copenhagen 9. Klein, Nomismata 3, 146. Demeester 43 (this coin). Old cabinet tone and extremely fine Ex Tkalec sale 28 October 1994, 70.