This is for a Vintage 1950's to 1960's White Egg cooker or steamer. We grew up with these in the 60's. It will make a perfect soft boiled egg in 6 minutes!! That is; once you get the knack of it! The eggs will taste like butter, if you get it right. Eggs are now good for you again. If you buy this unit I can give you help in making the perfect soft boiled egg. The cover has a small blue dot in the ceramic from factory. Its makes it special! I will send a copy of instructions with the purchase. I have rewired the unit with new connectors inside the back of the unit. Heavy connectors. It works like a charm!  The burnt marks on the plug will not harm anything. They can be left, or filed off. The bottom has been glued together, to keep the water out. That's about it! Any questions, feel free to contact me.  Happy Egg Cooking!