1870
Thomas Houseworth & Company, 1867
Thomas Houseworth & Company, 1872
Thomas Houseworth & Company, 1870
![[The Half Dome from Glacier Point, Yosemite]](https://media.getty.edu/iiif/image/5de608f4-4bc4-47f1-935a-24f5162ad915/full/843,/0/default.jpg)
![The Photographic and Optical Instrument Establishment of the Publishers, 317 and 319 Montgomery St. [Thomas Houseworth & Co.]](https://media.getty.edu/iiif/image/4ea0f863-67e2-4871-b6d3-37459a33c476/full/843,/0/default.jpg)
