Answer
The 100th anniversary of Carl Zeiss's death was celebrated with the issuance of the 2016 €2 commemorative coin. The coin was minted by the Bavarian State Mint and features a portrait of Zeiss on the obverse. The reverse features an image of the Jena University Observatory, which was founded by Zeiss in 1874. The coin was issued in a limited edition of 2 million coins.