[Anthracite coal burning freight locomotive Dubuque, built for Philadelphia & Reading Railroad: b & w photooprint]
[Anthracite coal burning locomotive Kosciusko, built for Philadelphia & Reading Railroad: b & w photograph].
"Anthracite coal burning Freight locomotive on the Philadelphia and Reading Railroad. photo by J. A. Millholland, (Dubuque") 3 proof prints
"Anthracite coal burning passenger locomotive Built by Philadelphia & Reading Railroad Company, photo by J.A. Millholland" ("Kosciusko")
Philadelphia and Reading Coal and Iron Company Records: 1866-1927.
[The first successful anthracite coal burning locomotive: reproduction of technical drawing.]
We Must Prevent This Help Save Anthracite Coal ... Our Transports Burn It Instead of Soft Coal to Prevent Discovery by Submarine. United States Fuel Administration
Swatara Railroad Papers: 1805-1894.