I am planning to get another case soon. So this one has gotta go. I am asking $150 OBO, or I might consider trading for toys. The outside measurements are: 51"H x 43"W x 15.5"D The shelves can be adjusted, but a little bit of work is required to move the shelves. Just gotta unscrew the brackets and screw them back in at the desired height. I've done it myself and it is pretty easy, just take a little time. And here is what the case looks like full of toys just so you have an idea (toys not included). I also have this case for sale. http://www.ikea.com/us/en/catalog/products/20242277/ Asking $150 OBO. In perfect condition. Also, I can deliver the case for you. Just buy me lunch or something.
Not airtight. There is a small hole drilled in the back of the case to run a cable through. But it does keep dust out better than a detlof. If that means anything haha.
Very nice display case. I was just having a discussion with another member how I would [eventually] love to have one of these to host my collection in.