This brand is the Rolls-Royce of stationary items, they are a masterpiece of engineering. They are from Eibar, in Basque Country.
They were made because of the 1929 economic crisis. This company used to manufacture weapons but they decided to diversify and began to make stationery items with the same quality and precision as their weapons had: a bullet should go down the canyon with the same precision as a staple should go down the rail.
They were about to disappear 3 years ago, but they have returned with more strength than ever (in fact we sold them for 6 years in our online shop and we had to stop selling them because they disappeared).