Apple Mac OS 8 Upgrade for Power Macintosh CD Version 8.0 1997 CD ROM Disc Only

Up for sale is a Apple Mac OS 8 Upgrade for Power Macintosh and Powerbook Systems CD Version 8.0 1997 CD ROM Disc Only 691-1686-A. Disc is used and in very good conditionbut does have a large black sharpie mark on the upper front of the disc (see pictures).