REMOVE

1. salted paper print
2. U.K. (Scotland)
3. European; British; Scottish …
4. National Gallery of Canada

WHAT

1. Photograph (1)
2. Photographs (1)
3. salted paper print (1)

WHERE

1. European; British; Scotti … (1)
2. U.K. (Scotland) (1)

WHO

1. Hill, David Octavius (1)
2. National Gallery of Canad … (1)

WHEN

1. 1843 (1)
2. 1847 (1)
3. c. 1843-1847 (1)