| Description | Notes | |
|---|---|---|
| EN | Berkshire leather | Pigskin |
| FR | Cuir Berkshire | Peau de porc |
| ES | Piel de Berkshire | Pigskin |
List 99 · Special cover material
01 — Berkshire leather
<!-- ONIX snippet not yet curated for codelist 99 (value: 01) -->- Introduced in Issue 2