1855–1865
George F. Gates, 1865
Charles Isaacs Photographs, 1851
Charles Isaacs Photographs, 1867
Charles Isaacs Photographs, 1975
Charles Isaacs Photographs, 1852
Charles Isaacs Photographs, 1860
Charles Isaacs Photographs, 1870
Charles Isaacs Photographs, 1850
Charles Isaacs Photographs, 1855
![Looking through cleft in Prospect Rock. [Mauch Chunk, Pa.]](https://media.getty.edu/iiif/image/e278d298-7469-43a0-870d-557bc2a87a53/full/843,/0/default.jpg)
