REMOVE

1. watercolour, pen and black i …
2. Canadian
3. National Gallery of Canada
4. c. 1947-1952

WHAT

1. Drawing (1)
2. Drawings and Watercolors (1)
3. watercolour, pen and blac … (1)

WHO

1. Iskowitz, Gershon (1)
2. National Gallery of Canad … (1)

WHEN

1. 1921-1988 (1)
2. 1947 (1)
3. 1952 (1)
4. c. 1947-1952 (1)