In its heyday, the blazer had come to symbolise a kind of conventional decency. Yacht club commodores and school bursars wore blazers. People who played bowls wore blazers.
Like the firm handshake and looking people straight in the eye, the blazer had originally been a symbol of trust. Because of this, it had been purloined by the less-than-trustworthy and became their preferred disguise.
Alan Whicker may be the last Briton to have worn a silver-buttoned blazer with complete confidence.