Board of Governors of the Federal Reserve System (U.S.), 1935-. "October 18, 1967," H.6 Money Stock Measures (October 18, 1967). https://fraser.stlouisfed.org/title/53/item/488792, accessed on June 23, 2021.
Based on data contained within, this is likely to be the October 25 issue, not the October 18 issue.
Board of Governors of the Federal Reserve System