DaveP wrote: ↑Sat Aug 22, 2020 9:27 am
Brass shoes (copper zinc alloy), brass nails or boots with copper nails were used in coal mines and munitions areas to avoid sparks from steel shoes and nails.
You can get copper coated horseshoe nails nowadays as supposed to help prevent fungal infections but the data is a little spurious. Never been a fan of rollers.
In the case of the pit ponies they rarely saw the light of day, so any brass shoes that they lost would have been underground and I suspect recyled. On the rare occasions that they were turned out into the fields it could well be that the shoes were removed beforehand.
I would guess that the ones in the munitions areas were confined to a small area, where again any lost shoes would be seen and recycled.
These are very different situations to the normal horse that is out in a field of grass where a lost shoe is hard to find or even in olden days where if pulling a plough the lost shoe would immediately be burried. So its not surprising that we never find the brass shoes (I have never heard of one being found) yet frequently find the normal ones.
I am not convinced about copper coated nails preventing fungal infection, good stable management should do that.
FYI: As for the modern halfshoes mentioned earlier I saw an item where it recommended them for use in snow, as it prevented balling of compact snow in the hoof which can be dangerous.