@openstreetmap/id-tagging-schema/data/fields/currency_multi.json

The OpenStreetMap tagging model used by the iD editor

{
    "key": "currency:",
    "type": "multiCombo",
    "label": "Currency Types",
    "terms": [
        "bills",
        "cash",
        "coins",
        "money"
    ],
    "caseSensitive": true
}