THRACO-MACEDONIAN REGION. Uncertain mint. Circa 5th century BC. Hemiobol (Silver, 8 mm, 0.29 g). Head of horse to right. Rev. Quadripartite incuse square with granulated recesses. Alpha Bank 42. SNG ANS 997. Tzamalis 91. In excellent condition for the type, clear and perfectly centered. Nearly extremely fine. The possibility that this is an imperial issue of Alexander I of Macedon should not be excluded.