OMG OMG OMG OMG OMG you are soooooooooooo lucky!! Those sets are so valuable. I would say because its mint....maybe 55.00 on the high end. I am not sure what the later versions do on the collector market. The earlier ones that have My Merry on them are really collectible and valuable. These later 60's ones kind of lost a little of their realistic appeal as the company quit using name brands on the toys inside the boxes. Still you are incredibly lucky to have found something in such good shape like that. That is so beautiful. Wow I really am curious to find out how well you did selling it. I would buy it in a heart beat, but I am over extended now. Man I wish I wasn't.