The 20 EUR silver coin "Einstein Ring" – available from 14.05.2025

This special coin honors the Einstein Ring, a fascinating phenomenon of gravitational lensing that stems from Albert Einstein's General Theory of Relativity. The coin is made of pure silver with a fine weight of 20.73 grams and a total weight of 22.42 grams. The coin comes in an original case and includes a certificate guaranteeing its authenticity and quality.