1853
Langenheim Brothers [Frederick and William Langenheim], 1860
Langenheim Brothers [Frederick and William Langenheim], 1856
Langenheim Brothers [Frederick and William Langenheim], 1858
Langenheim Brothers [Frederick and William Langenheim], 1855
Langenheim Brothers [Frederick and William Langenheim], 1850
![[Portrait of a Seated Woman in Matron Cap]](https://media.getty.edu/iiif/image/cbbce70d-9af6-4d1e-915c-2854a5aca980/full/843,/0/default.jpg)
![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)
![[The General Post Office at Washington]](https://media.getty.edu/iiif/image/66cb46cf-9b37-44e7-91e8-fee1b6b5a5fd/full/843,/0/default.jpg)
![Frederick Graff's Monument at Fairmount [Philadelphia]](https://media.getty.edu/iiif/image/4e163afb-2118-4099-b09e-36526ba58d5f/full/843,/0/default.jpg)
![[Bath Island and Rapids below the Mainland]](https://media.getty.edu/iiif/image/d5100a80-af98-4830-bf43-efb6a4574884/full/843,/0/default.jpg)