Cleaning out my warehouse and boxes of odd things have appeared. Here’s  an amplifier top cover for an MC-122?? I purchased this and the front glass in 2009 from the MCIntosh parts department. Used the glass to repair the faceplate and never used nor returned the top cover. BUT. I also had an MC 7100 at the same time so there’s a possibility that it could be for one of those. I’d been long enough now that I’m not quite sure which one it belongs to. Measurements in the photos.