Currency of the First World

1 uld: 0.2 gold pieces.

1 uld: 2 silver pieces.

1 uld: 10 bronze-iron pieces.

5 uld: 1 gold piece.

 10 silver pieces.

 50 bronze-iron pieces.

For comparison. 1 uld is equal to ⅕ gp (gold piece) which is equal to $10.