An iron cannon from HMS Fowey lay on the seafloor for 235 years about 13 miles away until archeologists removed it from the shipwreck site in 1983. HMS Fowey, a British warship, sank in 1748 after striking a reef in shallow water in what is now Biscayne National Park. Before sinking, the ship carried more than 200 sailors and 44 guns of different sizes that fired 6-, 9-, or 18-pound shot; this gun was a 9-pounder, named for the weight of its shot, though the cannon itself weighs nearly 3000 pounds. Marks on the cannon include a Tudor Rose crest suggesting it was property of the British Crown, a broad arrow indicating British military ownership, and the engraved number 19 as a foundry production mark. The broad arrow on many artifacts from HMS Fowey helped archeologists identify the wreck as a British warship. After excavation, the cannon underwent conservation to remove corrosion, marine growth, and salts, and it is kept in a low-humidity environment for long-term preservation.