Beautiful old silver coin from probably St.-Omer. Abbey of Saint Bertinus, VanHoudt G2497 in my opinion. See images and judge for yourself about the coin, which is more than 900 years old.
11mm silver
Country/province
Low countries feudal
Denomination
Maille of Obool St. Omer
Year/Period and Variation
1180-1220
Precious metal
Silver
Condition
Ungraded