My family is cleaning out my grandma's house and found this medical battery box. I don't have a picture of the outside but it's a wooden box, about 8 inched high. I have been doing research and haven't found anything exactly like it. I believe it's from the early 1900s and is referred to as a "quack" box. Items like it are selling on eBay from anywhere from $50-$400 right now. Any one have any information? Thanks in advance!