“Cass Art is on a mission. A mission to fill every town with artists, underpinned by the company’s long-standing manifesto. Cass Art is committed to encouraging everyone to realise their creative talents by providing the world’s top quality materials at the guaranteed best prices.” On Saturday  Cass Art opened its latest store (its 12th in the UK) in a beautiful building on Corporation Street. There were pretty enormous queues snaking their way down the street as Artists, both professional and amateur, waited to check out the enormous range of art supplies at the guaranteed best prices, including famous names like Faber-Castell, Winsor and Newton, Daler Rowney and Fabriano. As someone…