Series Is Presented Here As Four Variables--(1)--Seasonally Adjusted Data, 1867-1906 (2)--Seasonally Adjusted Data, 1907-1946 (3)--Original Data, 1955-1969 (4)--Seasonally Adjusted Data, 1947-1969. Data Are For The Wednesday Nearest The End Of The Month. Source: Data Are Computed By NBER From The Sum Of Series 14125 (Currency Held By The Public) And Series 14145 (Demand Deposits Adjusted And Time Deposits All Commericial Banks); See Friedman And Schwartz, Monetary Statistics Of The United States (NBER, 1970).
This NBER data series m14144a appears on the NBER website in Chapter 14 at http://www.nber.org/databases/macrohistory/contents/chapter14.html.
NBER Indicator: m14144a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Money Stock, Commercial Banks Plus Currency Held By Public for United States [M1444AUSM027SNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M1444AUSM027SNBR/, July 2, 2015.