Not wanting to miss an opportunity for better luck, I turned the horseshoe down to see if my luck would change. I haven't noticed anything unusual. Just an average endowment of luck. This is supported by Richard Cavendish in his book, Man Myth and Magic .He reminds us that our ancestors thought it was a powerful protection against the malice of witches and evil spirits. There are examples of a Moroccan cure for impotence using a heated horseshoe and water to make a drink.
Irish children benefit from a charm using old horseshoe nails, hen manure, and salt.
Not to be consumed of course, but hung. Well, after discovering that horseshoes have the power to avert evil, I decided that my good luck was just that I had found the horseshoe in the first place. It didn't make any difference if the opening was up or down. Just having it in my possession is luck enough.