Seller: penmannita (133) 100%, Location: Exeter, California, Ships to: US, Item: 153526252899 Up for sale is an authentic original Boyd's Battery, first patented January 17,1878, and sold as one of the first quack medical devices of it's time. This is a hard to find item, especially given it's beautiful condition, even after over 140 years of being around. As you can see by the pics, there are very few flaws, with the writing on the front and back still very clear. The batteries are all shiny with no corrosion that I can see. This item has not been cleaned and sat in my grandmother's jewelry box for as long as I have known her.