The guinea was imo a rather elegant thing, as it allowed retailers to impart additional value or eminence to a good simply by pricing in guineas rather than pou

The guinea was imo a rather elegant thing, as it allowed retailers to impart additional value or eminence to a good simply by pricing in guineas rather than pounds. From wikipedia: "Savile Row tailors, bespoke boot makers, fine jewelers, and expensive motorcars were always priced in guineas".