Hi Cees–
That thingy in Lake Ontario off Trenton might be vintage, but is almost certainly not a Shark…the one the website claimed it to be crashed into the lake while on floats in (iirc) 1937 and was recovered more or less whole soon afterward (Carl Vincent’s Shark book has photos of it lying on the slip at Trenton); but the thingy in the lake is on land undercarriage and, besides, it’s still in the lake! I doubt the RCAF would’ve bothered recovering it, changing the undercart, and dumping it back in Lake Ontario again. No other Shark ditched in that area, either. So, much as I wish that was a Shark down there, I’ll be completely gobsmacked if it turns out it is… 🙁
S.
Pity