1845
Langenheim Brothers [Frederick and William Langenheim], 1860
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
Langenheim Brothers [Frederick and William Langenheim], 1845
![[Portrait of an Unidentified Seated Man]](https://media.getty.edu/iiif/image/db494b19-d3d6-40a6-99c0-24e9c025c30a/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)
![[Chapel at Laurel Hill Cemetery, near Philadelphia]](https://media.getty.edu/iiif/image/33f63ccc-75a7-4291-b2f7-5e80add81942/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 Langenheim]](https://media.getty.edu/iiif/image/126afa61-772c-4273-aefb-489fbb74bdb9/full/843,/0/default.jpg)
![[Portrait of Two Seated Men]](https://media.getty.edu/iiif/image/8e4dc9e6-6dde-4ad5-98e7-17c61f39aba3/full/843,/0/default.jpg)
