Here is my nice Tsuba by Masayoshi Masayoshi with the theme of dragonflies. The dragonfly in Japanese is tombo (蜻蛉) and in the Muromachi period kachimushi was its name (勝 虫). These characters for literally mean Victory Bug and gives us insight into how the bushi of the time admired the dragonfly. Bushi had observed the nature of the dragonfly to attack, and always move forward to the prey.