Scottish Claymore, National Museum of Scotland. The two-handed highland Claymore, or “claidheamh mor” in Scottish Gaelic, was one of the final developments of the distinctive Scottish sword. By the 16th century, the single-handed Scottish sword with its down-turned quillons had evolved not just into a basket-hilted variety of the same blade, but also a long, two-handed sword with an unique quatrefoil guard. The Claymore was an aggressive infantry weapon. Too large to use on horseback or with…