1856
Langenheim Brothers [Frederick and William Langenheim], 1860
Langenheim Brothers [Frederick and William Langenheim], 1858
Langenheim Brothers [Frederick and William Langenheim], 1849
Langenheim Brothers [Frederick and William Langenheim], 1850
Langenheim Brothers [Frederick and William Langenheim], 1856
Langenheim Brothers [Frederick and William Langenheim], 1855
![Terrapin Tower, from Goat Island [Niagara Falls, New York]](https://media.getty.edu/iiif/image/c014aa75-aefa-4f9f-9f3e-b1e5c2cc979c/full/843,/0/default.jpg)
![Passaic Falls, Patterson [sic], N.J.](https://media.getty.edu/iiif/image/e4b93df3-bce1-4047-bc0c-c21b30b8795b/full/843,/0/default.jpg)
![[Frederick Langenheim]](https://media.getty.edu/iiif/image/126afa61-772c-4273-aefb-489fbb74bdb9/full/843,/0/default.jpg)
![[The General Post Office at Washington]](https://media.getty.edu/iiif/image/66cb46cf-9b37-44e7-91e8-fee1b6b5a5fd/full/843,/0/default.jpg)