Tetrad Upholstery Coniston Sofa. Individual hand studding and deep buttoning exemplifies the very best in British sofa craftsmanship. The velvet touch. Soft and inviting, there is something very special about the feel of velvet. Like many of the finest things, cotton velvets will take on a time warn appearance and need a little looking after. Made in Lancashire by Tetrad's tallented team of British craftsmen, their sofas are built to last. For more Information about Tetrad sofas and upholstery call us on 0115 9258347 or email info@kingsinteriors.com for that better deal.