Pics by me today - including the spandrelled glass at Howe & Robson:
Robson & Granville (note the roof is in place for the top floor alcove on Granville):

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Robson side at Robson & Granville:

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Robson side of protruding part that will house the Nordstrom restaurant. Note the spandrel (as if it's a feature).
I guess the spandrel needed to cover the steel structure, although solid surface or reflective glass would have worked too.
The height of the bottom spandrel is also out of proportion, so it looks bulky. Breaking it up into 2 smaller panes would have helped.

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Glass on the Howe side.
Note another piece of steel framing being lowered into place:

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