I love that the designer used Lego to demonstrate the mechanism to funders:

https://en.wikipedia.org/wiki/Falkirk_Wheel#/media/File:Falk...

While true, the caption also notes this isn't his model.

I'm reading that the model he demonstrated was his (using Legos he bought for his child), but the picture is a reconstruction of that.

That's what I meant, but you clarified it better :-)