This case needed a lot of love when I got it from a family friend, instead of risking drilling into the glass for adjustable shelf pins I reused old spacers from between a farm disc plow. The shelves are balanced from the center on each spacer.
All of the glass was originally held in with glazing and points. I made quarter round glass stop as a cleaner looking replacement.
Added a kerosene auto motor heater converted to an electrical lamp to shine a little light on these handsome Tootsies.