As a small indicator of the vagaries of on-line purchasing, I bought a copy of Macintosh Hard Disk 20 (1985), in used but fine condition, from an Australian seller through eBay in June 2006 for AUD0.99. It contained also some loose-leaf addenda for Plus and LaserWriter owners, which gives a rough idea of their issue date. I already had the HD 20 and HD 20 Startup Disk.

I boot a 512Ke/2MB/SCSI into System 6.0.8 from the HD 20. The Dove SCSI card is only recently installed, and awaits connection to a 40MB HDD with a 3:1 interleave by courtesy of Silverlining 5.8.x.

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