We had that same microwave in the rather posh rental home we lived in near Los Gatos before we bought our own place, which we knew would be a relative dump. The kitchen had been redone with all GE equipment in the '80s, oak cabinetry, and a dropped ceiling with an oak grid to hold the textured diffuser panels for the fluorescent tubes above it. Most of those panels came crashing down when Loma Prieta happened on 10/17/89. We rigged up strings of holiday mini lights stapled to the ceiling and put them on a dimmer, which provided a pleasing alternative.
The kitchens in those early 1960s tract homes were outfitted with GE originally, and there are still a few of them left. They're easy to spot on craigslist and other on-line classifieds sites.