We recently filled some requests for Jeff Behary at The Turn of the Century Electrotherapy Museum in West Palm Beach, Florida. Just goes to show that you never know what someone will want. He found our General Medical Products Information (GMPI) list online and saw that we had equipment repair records that a particular company kept on index cards, and asked for scans of them. I remembered some images of this kind of therapy being administered, hunted for more, and sent them off.
Here are a few images we sent to him.