Antiochos V Eupator. Seleukid Kings Of Syria. 164-162 BC. AR Tetradrachm 13.11 g. Ake-Ptolemaïs mint. Diademed head of Antiochos V right; AB monogram behind. BASILEWS ANTIOXOY EYPATOROS, eagle standing left on thunderbolt, palm branch in left field, HP monogram between eagle's legs. SC 1583b; Brett 1 (fourré); Extremely rare, possibly unique. With permission of cngcoins.com, 14 May 2008. CNG 78, Lot: 903. Sold For $8500. Extremely rare, possibly unique. The two known tetradrachms with the HP monogram cataloged by Brett, were plated contemporary forgeries. Houghton and Lorber contended that these were likely contemporary forgeries copied from official pieces which had yet to be discovered. This coin is the first known example with the HP monogram intact.