Seller: thorz09 (1,826) 100%, Location: Evansdale, Iowa, Ships to: US, Item: 293262614516 For sale is a Antique Davis & Kidder's Magneto Electric Machine for Nervous Diseases. Very unique wooden case which has brass corners. Includes a key but I wasn't able to lock it. Tested and works very well. Everything turns smoothly and the coils can get spinning quite fast. I hooked the electrodes to a multimeter and I was able to max out the AC current at 500v.After doing some research, this was patented in 1854. Some makes of the device say the patent date on the paper or the brass beams, but neither state it. I've seen a museum website predict it was made a couple years after the patent date in 1856. I can't guarantee that this is all original but it does appear so. The build quality seems on par with the era.Very good condition. Everything feels solid. A couple brass corners have minor cracks toward the bottom. The key included fits the hole but doesn't lock the box. The electrode wires are starting to fray in the midle but they still work fine, just need to be careful with them.See photos for details of condition. Box size: 10" x 4.5" x 4.5" Electrode lengths: 35" Total Weight: 6.4 lbs.