Hello,
Found this super lovely database while looking for info about currencies, and thought it's a must share
Download from here:
https://www.globalfinancialdata.com/news/GHC_Histories.xls
(C) Global Financial Data
Several sheets exist, but I found "Currency Histories" to be the most interesting for me.
Lots of info that match with Wikipedia/Krause/Numista, but many that differ as well.
For example:
Hope you find it helpful!