1932: The Birmingham Sound Reproducers company is set up in the West Midlands. In the early 1950s, Samuel Margolin begins buying auto-changing turntables from BSR, using them as the basis of his Dansette record player. Over the next twenty years, "Dansette" becomes a household word in Britain. By 1957, BSR has grown to employ 2,600 workers. In addition to manufacturing their own brand of player—the Monarch Automatic Record Changer that could select and play 7", 10" and 12" records at 33, 45 or 78 rpm, changing between the various settings automatically—BSR McDonald supplied turntables and autochangers to most of the world's record player manufacturers, eventually gaining 87% of the market. By 1977, BSR's various factories produced over 250,000 units a week.