(There's no screenshot for Apple IIgs System 5.0.4 yet. Please contribute to MR and add a screenshot now!)
Disk images are in dc42 and DART format. Works with emulators and Floppy Emu.
From the VintageMicros collection.
IIgs-System-5-0.4.sit (720.03 KiB / 737.32 KB)
/ compressed w/ Stuffit
Emulating this? It should run fine under: Basilisk II