The year in which a Traditionally, a coin-shaped artistic piece with no face value, made for religious, honorary and other commemorative purposes. or A coin is a small, flat, round piece of metal alloy (or combination of metals) used primarily as legal tender. Issued by government, they are standardised in weight and composition and are produced at ‘mints’. was minted. On a A banknote (or ‘bill’ as it is often referred to in the US) is a type of negotiable promissory note, issued by a bank or other licensed authority, payable to the bearer on demand., the date is usually the year in which the issuance of that banknote – not its printing or entering into circulation – was formally authorised.