From 1967: Steven Clarke's
@NewYorkFed
monograph "Central Bank Cooperation: 1924-31," exploring "the efforts of American, British, French, and German central bankers to reestablish and maintain international financial stability in 1924-31"
https://twitter.com/FedFRASER/status/1669375001257033730
https://fraser.stlouisfed.org/title/central-bank-cooperation-3608?utm_source=twitter&utm_medium=SM&utm_content=fedfraser&utm_campaign=d93b29bd-a01f-4df0-9ccd-9f396b72684c