Gentlemen:
When all else fails: either think British:
Can anyone explain the background to that photo? It looks like big blocks of something that doesn't belong there, maybe damage to the negative? Compare it with this one from a Vancouver Natural History Society camp in the 1920s or so to Boothanie Valley
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It is very curious because it and the other photos in the set are of the Prince of Wales opening the Princes' Gates in 1927 down at the CNE.
An interesting side-note to this visit (given the current interest in Edward's brother George, as portrayed in "The King's Speech"), is that George, the Duke of Kent, accompanied Edward on this visit to Toronto, resulting in the naming of the gates for both "princes". George can be seen in this pic (to the right):
And here, at City Hall:
And the gates (here referred to as the Prince of Wales Gate):