This is a coin from
Spain. you will find it in
M.
Crusafont i Sabater , El sistema monetario visigodo cobre y oro, Barce-lona 1994.
this coin is "Group D"
Sabatier supposed this coin wad struck in Toledo (
monogram TO-TO) during the Visigotic period
in fact many
numismatist like Teresa Marot (and me too) are sure it is not visigotic.... but made in the South
Spain (ex Betica) by indipendent cities like Siviglia, Cordoba etc between 550 and 600 .... look at the "bizantine
Spain on
wikipedia" to understand the complex period and place