“In another key discovery, the wooden “step” connecting the mast to the hull was found to contain a coin from Roman Siscia (in modern-day Croatia), in line with Roman rituals for blessing a ship. The coin was made during the reign of the Roman emperor Constantine the Great and fixed the earliest possible date of the ship as A.D. 320...”
Some traditions never die...
https://en.tallink.com/blog-mystar/-/blogs/lucky-coins-under-the-keel
Obviously doesn’t work!.........