I wonder if it's on display in the CC Mint/Museum still? http://www.nevadaappeal.com/news/local/23949887-113/past-pages-for-friday-sept-23-2016 150 Years Ago Silver trowel: A massive silver trowel bears the inscription: “Presented by the employees of the Gould and Curry Mill to A. Curry, Superintendent of the U.S. Branch Mint, Carson City, Nevada.” This elegant trowel will be used in the corner stone ceremonies.