Vintage Apple II documentation lot from the early era of On-Line Systems, the pioneering software company that later became Sierra On-Line.
Included in this lot:
• Original instruction sheet for Mystery House, titled “HI-RES ADVENTURE #1”
• Sabotage manual by Mark Allen (On-Line Systems)
• 5.25" floppy disk labeled “DOS 3.3 – Mystery House – Master #2”
• Paper disk sleeve
Mystery House is historically significant as one of the earliest computer adventure games to feature graphics, designed by Roberta Williams and published by Ken Williams. The instruction sheet included here is the thin cardstock style commonly associated with early On-Line Systems releases, prior to the later Sierra-branded reprints.
Condition:
Paper materials show normal age and storage wear consistent with vintage Apple II documentation. Please review photos carefully for details and condition.
Important note:
The floppy disk included in this lot appears to be a labeled copy (“Master #2”). It has not been tested and is included as-is for archival, display, or collection purposes.
A great addition for collectors of early Apple II software, Sierra / On-Line Systems history, or vintage computer gaming documentation.
Please see photos for exact items included. Ships carefully packaged.