The first shoe is pretty gungy to tell much from the pictures, but it looks to me like it's machine made. The heels caulks were
turned by the farrier, as was the toe grab either forge welded or forge brazed onto the toe of the shoe. It's a front shoe, and
looks like it might have been lost because a heel was a little long and the animal stepped on it with a back foot, either that or
it got hung in a fence, something that caused it to bend when it came off the foot.
The second set of pictures shows a hind shoe for a draft horse. That shoe also looks to me like it's machine made, and the caulks
(pronounced "corks") were turned by the blacksmith/farrier at the time of shoeing. The shoe next to that one is for a front foot,
and the photograph shows the foot side of the shoe, so can't tell much more about it. I don't know why the crease tapering
out would signify hand made, I have machine made shoes out in the shop right now that the crease tapers out on.
On the third set of pictures, at first glance the one on the left looks like a mule shoe, but then you see that a blacksmith has
tapered the ends to a point. Looking at the wear on the toe grab, the shoe has been on an animal, either horse or mule, but
way the heels are pointed the person doing so had a different use in mind for the shoe, other than nailing it back on a foot.
I've done exactly the same thing in the past, and then driven the shoe into a tree to use to tie the horse to. Basically it was
made into a giant staple. And the last shoe very definitely looks like a machine made for a hind foot, and again the caulks and
grab were done at the time the horse was shod. Very difficult to look at a picture of a horse shoe and put a date on it. Hand
made shoes are still being used today, I've done it myself, and machine made shoes were manufactured as far back as the Civil
War. There are some shoes that a person can tell is newer, Diamond horse and mule shoes comes to mind, and the imported
shoes from Japan look a little different than the earlier ones made in America, but basically it comes down to a horse shoe is a
horse shoe, is a horse shoe. There isn't much difference.