A Most Delicate Invention
Tim Parks: ‘Money and Beauty’, 22 September 2011
“... cost you around £110. This was a coin for serious trade, and the Florentines made sure that its weight and purity remained absolutely unchanged for the almost three hundred years it was minted, keeping meticulous records of alterations in design and instituting a system of quality control that saw each superintendent serving only six months in order to ... ”