They do work and still have everything with them including the original owners manuals. They have a few dings and scratches on the wood but are in overall great condition. I believe they were made in May 1942. I plan on listing them on Ebay but have no idea what they are worth. Anybody have any idea? The first one is an incubator and a hatcher together with seperate heaters for each door. The second one is a hatcher but could be used for an incubator if you dont mind turning the eggs by hand.