Cleaned the tank with Bar Keepers Friend to get most of the hard water stains out. Removed the broken top trim and started removal of the old silicone. The tank still has the manufacturer sticker - All-Glass 1989 - A 29 year old 29 Gallon! It definitely needs a reseal!
Glass is etched a bit but hoping it will disappear with some water. All ready for the new silicone. Just waiting on the delivery. Should be here Monday