but I really think that's highly unlikely, if only for the reason that the size doesn't correspond to standard for the product. It's invariably 60" X 60" (or whatever the metric equivalent is). Cutting 2 X 4 panels from 5 X 5 panels just isn't practical. Also, 11 plies isn't consistent with the 13 ply srandard, the only way I've ever seen it. I just went and looked at a piece of 1/2" Baltic Birch to see if I was remembering incorrectly - it has 9 plies, which sort of confirms my memory of 13 plies for 3/4".The price ($80 Cdn per sheet,for partial sheets) is equivalent to about $61 USD per sheet, $15 USD per quarter sheet. That's roughly what they charge for their "cabinet grade" birch veneer plywood here.
3/4" - 18 or 19 mm Baltic birch here is also around $60 per sheet. But that's $60 for 25 Sq Ft, vs 32 Sq Ft for "ordinary" plywood. If the comparison holds up, you ought to be paying even more than you are for Baltic Birch.