Item 8902 - Thomes multi stage boiler, ca. 1900 Item 8902 - Thomes multi stage boiler, ca. 1900 Contributed by Maine Historical Society Item 8902 Zoom 2599px x 4085px - 8.7"w x 13.6"h @ 300dpi | Need a larger size? *Credit line must read: Collections of Maine Historical Society Image Info The Thomes multi stage boiler was manufactured at the Portland Company in Portland, Maine, invented by Frank E. Thomes. Show Details