Mr. Porter heads to the home of the historic hatmaker to witness the 52-stage process that has barely changed in a century.

At its peak, in the first half of the 20th century, Borsalino was crafting in excess of two million hats per year and employing 3,000 people. It dominated the market to such an extent that the word “borsalino” even appeared in the Oxford English Dictionary as a noun used to describe “a man’s wide-brimmed felt hat”. If you’ve watched Casablanca, you’ll have seen Hollywood legend Mr Humphrey Bogart wearing a Borsalino fedora.