Ephod (Choshen) The High Priest Chestpiece (English) Ephod (Choshen) The High Priest Chestpiece (English) - Pewter Size: 5" x 3.5" (13x9cm) Boxed with Description of the Stones The High Priest Chestpiece ~ "Ephod" Also known as the Stones of the Choshen. Centered are the stones of the Twelve Tribes of Israel. Each stone represent the name of that tribe engraved in English and their stone attributes. On the back engraved God' detailed instruction to 'Aaron the High Priest' on how to make the Chestpiece, the stones names and their attributes.