The Bulgarian maker of this belt used billon and verdigris to keep the cost of production down, as much of the population was not wealthy.
![Belt from Bulgaria](https://thedaaldercollection.com/wp-content/uploads/2016/04/the-daalder-collection-bulgarian-belt-1.jpg)
The Bulgarian maker of this belt used billon and verdigris to keep the cost of production down, as much of the population was not wealthy.