| || |
Josiah Johnson Hawes
The photographic wagon of J.J. Hawes, 19 Tremont Row Boston (Detail)
National Gallery of Canada, The Origins of Photography: The Matthew R. Isenburg and Enhanced Isenburg Collections 1840-1880
This detailed view clearly shows the photographs of Boston taken by Josiah Johnson Hawes fixed to the side of the wagon. Closer examination reveals that these could be protected by a canvas flap.
Also note the stereo camera on the tripod.