Filtering and Sorting

Filter Panel

The banknote list page includes a filter panel that allows you to narrow down results by multiple criteria simultaneously:

• Region / Sub-region / Country / Currency / Issuing Authority — Geographic and monetary filters
• Substrate — By type, brand, or treatment
• Security Feature — By feature type, effect, or brand
• Theme — Filter by motif (Portrait, Landscape, Monument, etc.)
• Colour — Filter by dominant colour
• Status — Current, superseded, obsolete, or commemorative
• Search — Free-text search across banknote fields, including supplier names

Any vs All (OR / AND)

For multi-select filters such as Theme, Colour, Substrate Brand, Substrate Treatment and Security Feature, you can switch between Any (OR) and All (AND) logic. For example, selecting two colours with Any returns notes with either colour, while All returns only notes containing both. The choice is persisted in the URL.

Dynamic Filters

Filters update dynamically using HTMX — when you change one filter, the available options in other filters automatically adjust to show only relevant values. For example, selecting a specific currency will update the issuing authority dropdown to show only authorities that issue that currency.

Filtering by Supplier

From any company profile page in the Supplier Directory you can click through to a banknote list filtered to that supplier. The URL accepts ?supplier=<company_id> on its own, or combined with &supplier_role=designer|printer|substrate|feature to scope the view to a specific role.

Status Filter

The status filter allows you to show or hide banknotes based on their circulation status. By default, all statuses are shown. You can toggle individual statuses on or off.

Sorting

Click on any sortable column header to sort the results. Sortable columns include:

• Denomination
• Year
• Substrate
• Country

Click the same column header again to reverse the sort order. The current sort column and direction are indicated by an arrow icon.

Combining Filters and Sorts

All filters and sorts can be combined. For example, you could filter for polymer banknotes from a specific currency, sorted by denomination. Your filter selections are preserved in the URL, so you can bookmark or share filtered views.