Thank you Nadya! 2005 PSP with this 5th cent. BCE gold Thracian funeral mask on cachet. It was unearthed a year prior in the Svetitsata burial mound. It is thought to belong to the Odrysian King Teres, he was also buried with armour, weapons and incredibly, 2 Attic red-figured vases. These are now at the National Archaeological Museum in Sophia.