THEY CAN’T say with absolute certainty whether it was made in 1791 or 1890, but “due to the colour and aromas” it’s believed to be the former. The unlabelled, handblown bottle is small, half a standard 750ml measure of ‘Constantia Sweet’, acquired by Stellenbosch Farmers’ Winery (now Heineken Beverages) at a London auction in 1974. Recently resealed by Amorim Cork