The only time he displayed what I'm thinking might have been gaiting was when I was riding him by myself in the forest so there wasn't any one else around to tell me whether he was gaiting so I'll try to describe what it felt like...
We were trotting along and I wanted him to canter so I said "canter' because he wasn't responding to my leg cues and he immediately lurched into something that was fast like a canter and extremely smooth. It wasn't like the normal rocking motion of the canter, it was just like I was going in a level line straight along. Or like when you're riding in a car, going fast. He only did whatever gait that was twice during the summer, the rest of the time he only walked and he did trot some.
He was a very very calm good natured old guy. He also had HUGE feet for his size, they were the same size as the draft cross we had that year and he was only around 15 hh while the draft was at least 17hh.
I do have a few pictures of him. He was older and pretty skinny so excuse how thin he looks, we did our best to get him to a good weight and in these pictures he's at a way better weight than he was when we acquired him.
Here's a head shot:
Please excuse my horrible bareback riding skillz. That picture was taken the second time I ever rode bareback. I'm pretty sure we were walking in this picture but maybe not (it's been a long time)?
He kind of looks like he might have TWH in him to me just because of his head but I'm no expert...