With basic case joinery tested, I moved onto a number of other steps required such as refining the sides, making the H. Mahogany door and a pull of sinker Sapodilla.
The back panel slides downwards in side grooves and into the bottom groove. The top locks the panel in place. The order of glue up is rather critical. Hopefully, the numerous dry fitting will increase the likelihood of success.
The photo gallery (with captions) below shows number of other details.