Hexagram was a large silver coin of the Byzantine Empire issued primarily during 7th century AD during the reigns of Heraclius, Constans II, and Constantine IV. It weighed about 6 grams.

2016-06-17 - New coins
New coins from CoinWorldTV on Ebay.com.
One of them is
CoinWorldTV 1267, Slavonia/Croatia, Bela IV of Hungary. Silver Banovac Denar Coin. R2! ...
2016-04-29 - New coins
New coins from Warszawskie Centrum Numizmatyczne.
One of them is
POLAND - XVI cent.; Stefan Batory 1576-1586, trojak 1586, Ryga, Iger R.86.1.a (R), Gerbaszewski ...