Looks like this has been answered with great pics jimliner. I had already searched archives of NLG and found this text instruction. I thought I would paste it here for reference in current environment. I find it interesting he points out to be careful when pushing because the entire chrome frame is free once you remove the screws, I hope he didn't learn that the hard way. LOL
There are two screws on the inside of the door, one each side, lined up with the sides of the chrome frame and about an inch down from the top of it. If you remove these screws, the belly glass assembly can be tilted forward from the top and lifted free. It can't be removed entirely, as there are wires attached for the belly glass lamp. It may be stuck in place if it hasn't moved for a long time, but those two screws are the only fastenings and you should be able to free it by pushing from behind. Be careful, as it may come free suddenly. The chrome trim can then be removed, allowing the glass to be replaced.
Marshall Fey's "complete" manual book is nowhere near complete. The Mead "Owner's Pictorial Guide" is much more comprehensive.