...is the silhouette of a Japanese sword guard called "Tsuba." This necessary fitting for the sword evolved over a period of centuries from a plain iron disc into a highly developed art form with thousands of designs and hundreds of full-time artists. Some were very plain and some required a year of highly skilled workmanship to produce. This particular design, from about 1800, is "Distant Pines" by an artist named Tadatoki. What has this to do with engineering? It is to remind us that there is art in good engineering.