See 9th century Armenian Mamluk Coins with Solomon’s Seal on:
This blog (by Zeev Barkan) is dedicated to the Star of David, its history, its various meanings and usages in different cultures. It includes thousands of pictures of Star of David, six-pointed stars, hexagrams, Solomon's Seals, Magen Davids and yellow badges,and served as a resource for three books and four art exhibitions.
Saturday, February 21, 2009
Coin of Herod the Great
A six-pointed star appears on the reverse of one of the coins of Herod the Great (73-4 BCE) along with a military helmet, wreath, and two palm branches.
Obverse: a tripod, a bowl and inscriptions: “Herod king” “year 3” (37 B.C.E.)
Drawing was copied from the Jewish Encyclopedia entry: helmet.
Thanks to Dobush who referred me to this image.