archive.org is a goldmine of research material.
Carlisle joint station, and approaches from north, south, east, & west, including Saint Nicholas level crossing and Crown street junction : instructions to signalmen, drivers, guards, breaksmen, & others 1865
https://archive.org/details/carlislejoi ... m+whistlesPractical points, a handbook for... engineers
by Farnum, John S. [from old catalog] 1903
https://archive.org/details/practicalpo ... m+whistlesPrice-list of plumbers' brass work, copper, iron, and earthen ware, and plumbing materials manufactured by Hayden, Gere & Co. : for sale by Dalton & Ingersoll, no. 19 Union St., Boston.
by Dalton-Ingersoll Company 1866
https://archive.org/details/pricelistof ... m+whistlesCatalogue "B", pumps and hydraulic machinery for every service ..
by Goulds Manufacturing Co 1900
https://archive.org/details/cataloguebp ... m+whistles