John Plumbe Jr. (1809-1857) and his circle, American.
 
A sixth plate, with mat stamped "Plumbe's Patent Oct. 22, 1842."
 
An early practitioner, by 1847 Plumbe had opened string of "franchises" for his business in several dozen American cities. As is usual for these early images, the city in which this image was made is not known.
 
Ex Arnold Crane Collection.