REMOVE

1. Drawing
2. watercolour over graphite on …
3. National Gallery of Canada
4. 1840

WHAT

1. Drawings and Watercolors (2)
2. watercolour over graphite … (2)

WHERE

1. Canadian; British (1)
2. North American; Canadian (1)

WHO

1. National Gallery of Canad … (2)
2. Berczy, William Bent (1)
3. Mercer, Alexander Cavalié (1)

WHEN

1. 1850 (1)
2. c. 1840-1850 (1)