Ear tag be deferred to some later date. Pigs, cattle and sheep are frequently earmarked with pliers that notch registered owner and/or age marks into the ear. Mares on large horse breeding farms have a plastic tag attached to a neck strap for identification; which preserves their ears free of notches. Dairy cows are sometimes identified with ratchet fastened plastic anklets fitted on the pastern for ready inspection during milking; however NLIS requirements apply to cattle - including both dairy and beef animals. More commonly coloured electrical tape is used as short term ankle identifiers for dairy animals to identify when one
Viking Age arms and armour and the Gokstad shields have holes along the rim for fastening some sort of non-metallic rim protection. These were called shield lists and they protected ship crews from waves and the wind. Some Viking shields may have been decorated by simple patterns although some skaldic poems praising shields might indicate more elaborate decoration and archaeological evidence has supported this. In fact, there is a complete subgenre of Skaldic poetry dedicated to shields, known as "shield poems", that describe scenes painted on shields. For example, the late-9th-century skaldic poem, "Ragnarsdrápa", describes some shields painted with mythological scenes. Viking shields were also