There are two Czech companies named after the renowned South African diamond whose name means 'Mountain of Light'. The more internationally famous, perhaps, is the pencil manufacturer Koh-i-Noor Hardtmuth, founded in Vienna in 1790 but based since the mid-19th century in the southern Bohemian city of České Budějovice.
The other is the no less global Vršovice-based manufacturer of press-studs, snaps, needles, pins, buttons, zips and all manner of other fasteners, which moved here from Holešovice in 1907 and has continued very successfully ever since.
Their advertisement, painted on the side of the Koh-i-Noor building on Kavkazská (Caucasus Street), is composed of the trademark image of a girl's face with a press-stud for an eye, originally designed by the great Czech artist František Kupka, and the legend 'Patent na spolehlivost' - 'Patented Reliability'.
But an even greater sign than this of the company's enduring success (and anticipated permanence) is the fact that their company headquarters has a tram stop named after it. Anyone clambering aboard the 22 or the 7 will be familiar with the message 'Next stop: Koh-i-Noor', and it's hard not to feel a twinge of local pride each time travellers are reminded of this great name.