Michael Houghton wrote:

....
447: haybale lifter thingy. The lifting point is between the
gear teeth. The lever is the release thingy that would
have a line on it

Don't think it's a hayhook although I suppose it could have been used as
such.

Can't get much of a feel for the overall size as I have no idea what the
19" dimension is in reference to, but I'm thinking it looks more like a
light logging hook than for hay purposes.

But, hey, who knows what them crazy Canadians did, eh?