Part of a manilla from the wreck of the 'Douro'. Manillas were rings of metal worn on the arm or wrist by some African tribes and used as a medium of exchange. The 'Douro' was wrecked on the Western Rocks, Isles of Scilly, 28 January 1843 on a voyage from Liverpool to Oporto. She was carrying cotton bales and thousands of manillas. The 'Douro' was not a slaver but this part of her cargo was likely to be intended for use as payment for the numerous enslaved Africans were still being shipped to Brazil during the 1840s until the trade was effectively stopped in 1851.