Watch List notes:

KINGS of MACEDON. temp. Alexander III – Kassander. Circa 325-310 BC. AR Tetradrachm (29mm, 15.79 g, 12h). In the name and types of Alexander III. Uncertain mint in Greece or Macedon. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; plow horizontally left in left field. Price PO(2), 20 = A. F. von Prokesh-Osten, "Suite des monnaies inédits d'or et d'argent d'Alexandre le Grand" in NZ 3 (1871), 20; otherwise unpublished. Some roughness and light scratches. VF. Extremely rare, possibly the second known; only the Prokesh-Osten piece cited by Price, none in CoinArchives.

There are a number of coins in the collection of Prokesh-Osten that Price could not verify. These coins were therefore omitted from Price's catalog, but were listed in his concordance list on pp. 535–41.