 System 7 CD Alpha & Beta releases - Apple Macintosh Development / Prototype

Description

For sale are three CDs in excellent condition, all sold as one lot. Each is a from a development cycle of System 7.0. The earliest is May 1990 with an Alpha release. Then you have two Beta releases from October 1990 and February 1991. I am not sure how may other CDs would have be produced before, during or after these releases. As we know, system 7.0 had a very long development time. These are pretty cool and not easy to find!
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