REMOVE

1. collodion silver print
2. Canada: Quebec, Montreal
3. Mortimer-Lamb, Harold
4. National Gallery of Canada

WHAT

1. Photographs (1)
2. collodion silver print (1)

WHERE

1. Canada: Quebec, Montreal (1)
2. North American; Canadian (1)

WHO

1. Mortimer-Lamb, Harold (1)
2. National Gallery of Canad … (1)

WHEN

1. 1915 (1)
2. 1919 (1)
3. c. 1915-1919 (1)