REMOVE

1. doorways
2. trees
3. rivers

WHAT

1. buildings (structures) (2)
2. grain elevators (2)
3. ink (2)
4. landscapes (representatio … (2)
5. postcards (2)

More 

WHERE

1. Westlock, Alberta, Canada (2)

WHEN

1. 1915 (2)
2. 1950 (2)
3. circa 1915 to circa 1950 (2)