In the American West, when you rode your horse to town, you tied it to a wooden rail. In Siena, Italy, your horse had more elegant accommodations.
Hand-crafted, I assume, to explain the slight (and charming) differences.
The bricks remind me that the pigment colors "burnt sienna" and "raw sienna" are named after the color of earth in the town of Siena.
Somewhere out there in internet-land, surely somebody knows more about these metal fixtures (such as, for starters, what is their proper name?) Whoever you are, would it please somehow chance to happen, perhaps through divine intervention, that you read this blog and feel moved to tell me where I can learn more about these old fixtures?