Board of Governors of the Federal Reserve System (U.S.), 1935-
and Federal Reserve Board, 1914-1935. Interpretation of Law or Regulation: Rating and Classification of Coal Stokers, Number S-453, Volume 56, Page 174,
Mimeograph Letters and Statements of the Board.
Board of Governors of the Federal Reserve System (U.S.), 1935-.
https://fraser.stlouisfed.org/archival/4957/item/509798, accessed on October 15, 2026.