 It is held that in the 14th and 15th centuries that Wolverhampton was one of the "staple towns" of the woollen trade, which today can be seen by the inclusion of a woolpack on the city's coat of arms, and by the many small streets, especially in the city centre, called "Fold" (examples being Blossom's Fold, Farmers Fold, Townwell Fold and Victoria Fold), as well as Woolpack Street and Woolpack Alley.In 1512, Sir Stephen Jenyns, a former Lord Mayor of London and a twice Master of the Worshipful Company of Merchant Taylors, who was born in the city, founded Wolverhampton Grammar School, one of the oldest active schools in Britain.From the 16th century onwards, Wolverhampton became home to a number of metal industries including lock and key making and iron and brass working.