Series Is Presented Here As Two Variables--(1)--Original Data, 1919-1930 (2)--Original Data, 1925-1934. Data Were Computed At The Middle Of The Month. Source: London And Cambridge Economic Service, Special Memorandum No. 33, January 1931, P. 13, And Following Monthly Bulletins.
This NBER data series m13034b appears on the NBER website in Chapter 13 at http://www.nber.org/databases/macrohistory/contents/chapter13.html.
NBER Indicator: m13034b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Index of Yield of Fixed Interest Stocks for Great Britain [M1334BGBM333NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M1334BGBM333NNBR/, October 9, 2015.