For reference
this is the Numista page.
I checked the Charlton catalogue, 2015 edition, and this variety is nowhere mentioned ─ neither for 1991 nor 1993. There's nothing either in Canadian Coin News, Trends section (October 2017 edition). It would be nice that references be added in the comments section when someone decides to list some obscure variant.
Or perhaps it's listed in a more recent edition of Charlton? I doubt it, but it's possible.
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