Apple's policy has always been that if you can show proof of ownership of either Apple original floppy disks or a physical machine, they'd give you a copy of either the OS that was on those floppies or the OS that came with the physical machine. Many years ago I first got a copy of System 6 for use with A-MAX (Macintosh emulation on Amiga) because someone had given me System 6 disks which had been overwritten but still had the original Apple stickers.