Apparently all the pages of Le Devoir today were accidentally labelled Thursday. I’d understand accidentally putting 2007, or getting the date wrong, but how does no one notice the day of the week is incorrect?
As for the suggestion that, like a stamp with a mistake in it, these copies will be worth something someday: don’t hold your breath. Mistakes in newspaper folios are common, and embarrassing.
Le Devoir loves you more today than yesterday, obvs.