A recipe for guaranteed delivery: post a ripe cheese with every letter

The Rosewall affair signifies everything that is wrong with Royal Mail. The two-and-a-half ton Rosewall sculpture by Dame Barbara Hepworth was acquired by the Ministry of Works and the Post Office in 1963 for a new Post Office Pension Fund building in Chesterfield, where it became a landmark — until last October, when it took a trip to the Bonhams saleroom in London.