Extrema Ratio Coin XXV Anniversarium is a commemorative coin struck to mark the twenty-fifth anniversary of the company. It is made of silver-plated steel; it has diameter of 4 cm and weighs 38,5 g. The heads of Coin XXV Anniversarium includes the iconic Extrema Ratio gauntlet flanked by the year of foundation (1997) and the twenty-fifth year of activity of the company (2022). The tails depicts the new company logo, which was reinvented for the twenty-fifth anniversary. Thanks to an accurate three-dimensional scan of the gauntlet processed using a 3D software, it was possible to obtain a perfect digitization of the piece, which has been essential for achieving an optimal result in the striking phase. Coin XXV Anniversarium has been the product of a collaboration between Extrema Ratio and a Tuscan leading company in the development and production of coins, badges, friezes and other metal works as well as the supplier of one of the most important and famous automotive brands in the world. Coin has been finely crafted and carefully studied in detail by the expert hands of skilful artisans; thanks to their class and passion they have achieved a result that brings out the quality of the product. Coin XXV Anniversarium comes inside an elegant velvet-clad case.