Böckh decides that the "Alexandrian drachma" was 6/5ths of the Solonic 67, or = 80.5, and shows that it was not Ptolemaic, or Rhodian, or Aeginetan, being distinguished from these in inscriptions (2).
The system which is perhaps the best known, through its adoption by Solon in Athens, and is thence called Attic or Solonic, is nevertheless far older than its introduction into Greece, being found in full vigour in Egypt in the 6th century B.C. It has been usually reckoned as a rather heavier form of the 129 shekel, increased to 134 on its adoption by Solon.
Böckh decides that the "Alexandrian drachma" was 6/5ths of the Solonic 67, or = 80.5, and shows that it was not Ptolemaic, or Rhodian, or Aeginetan, being distinguished from these in inscriptions (2).