The Swissmint Patterns. 20 francs 2025 B, Bern. CERN. SILVER PATTERS. Magnet from the large Hadron collider with "E" symbol for ESSAI. Legend, value and date all around / Two colliding pieces. 20,00g. NGC PF70 ULTRA CAMEO. (8400354-033). Of the highest rarity. Unique pattern with "E" symbol Technical information from Swissmint: This Pattern was realized with three strokes of 110 tons pressure. The matt finish on the obverse was aged because the coin stucco to the this during coinage. The final the was reproduced without a matt finish. CERN (European Laboratory for Particle Physics) is the world's largest particle physics laboratory. Found in 1954 and based in Geneva, its mission is to explore the fundamental laws of the universe by studying the smallest constitutions of matter, parts. The CERN's LHC (Large Hadron Collider) is the world's largest particle accelerator. This ring, with a circumference of 27 km, accelerates protons to a speed close to that of light before causing them to collide. The analysis of these collisions provides a deeper understanding of the fundamental structure of matter and how the universe works.