Ear tag ear is tagged. Australian sheep and goats are required to have visually readable ear tags printed with a Property Identification Code (PIC). They are complemented by movement documents supplied by consignors that are used for identification and tracking. Very small ear tags are available for laboratory animals such as mice and rats. They are usually sold with a device that pierces the animal's ear and installs the tag at the same time. Lab animals can also be identified by other methods such as ear punching or marking (also used for livestock; see below), implanted RFID tags (mice are too small
Identifying marks on euro coins suit in the coming years. The use of mint marks on euro coins takes one of these three forms: Mint master marks or privy marks are symbols representing directors, chief engravers or chief executive officers of mints. The directors of the "Monnaie Royale de Belgique"/"Koninklijke Munt van België" (Royal Belgian Mint) in Brussels uses mint master's marks on all €2 commemorative coins and on all Belgian euro coins with a datestamp from 2008 onwards minted at this location. The director of the "Rahapaja Oy" (Mint of Finland, LTD.) mint in Helsinki-Vantaa used a mint master's mark on Finnish euro coins