I labelled one of my historic photos of Winnipeg today. The yellow-labelled buildings are still there and the blue-labelled ones not. I hadn't been able to date this photo before but on looking closely I could see that the Wheat Board building is under construction (and nearly finished) on Main Street. Also the Grain Exchange has finally taken its complete form, with the upper four floors on the south side lighter coloured than the older floors below (you can still see a tiny difference in the colour today, I believe). Those facts suggest that this was taken in mid-1928.
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click here.