Does anyone know of a book or online site that has compiled a database tracking the history of coin values. Let's say I'm searching for the value of a 1857 EF-40 Half Cent
in 1970. Anyone know where I could find this information. I have searched greysheets previous publications and https://www.us-coin-values-advisor.com/
. I have found some of the information I'm in search of, but no really complete database.