You'll find a few words and phrases that sum up the Preston upholstery maker Tetrad: distinctive, eccentric and British.  They aren't thinking about churning out sofas and chairs, but are constantly experimenting with anything various, but, Once in a while, they think of a blinding winner: their Harris Tweed collection. https://tetradsofas03355.tkzblog.com/36447984/not-known-factual-statements-about-tetrad-sofas