. Bulletin. 104 BUREAU OF MINES BULLETIN 117 PLATE XI. .4. LUMP OF COAL FROM BENTON, ILL.

---

Size: 1854px × 1347px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou