Stove and oven the old turquoise color I think do not really know what color it is. Even has the oven grades

HELP???? Does anyone know the year it was made? And if it is Valuable? If it isn't that valuable could I put it on a deck with plants and what could I put on it to make certain it is protected from the weather?
This stove oven has the grades with it and I know it looks dirty with dirt and such but could be cleaned up very nice. It has been in my garage ever since I got it. It was told to me it worked just needed to be put back together. It has some other parts as well. I have wanted to clean it up and restore as much as I could but I am now handicapped so I can not do that but I have always wondered what year it was? I have not been able to look at the back to get a date maybe when my children are here they can help me. Such a pretty thing. They had style. All the handles and knobs are there as u can see. Sorry for it being such a diaray but I could not lift the top box off of the top. I will try and get my son to lift it all soon and take a better picture.