Six Photographs by Unknown, [no date], of Drawings and Maps of Mauch Chunk Coal region by [Charles Alexandre Leseueur. R. G. Vail], ca.1829, 1834, gsm_0794. Wilkes University Archives.

Six Photographs by Unknown, [no date], of Drawings and Maps of Mauch Chunk Coal region by [Charles Alexandre Leseueur. R. G. Vail], ca.1829, 1834, gsm_0794. Wilkes University Archives. https://archivepublic.wilkes.edu/repositories/2/digital_objects/7551 Accessed August 22, 2026.