Seen on eBay for just under €50, CDs of the beta version of System 7.
I don’t mention every beta version for sale, especially since Apple sold the beta version of Mac OS X, so it’s quite common. Plus, even in this case, betas are usually easy to find as ISOs. But here we have a beta of System 7 (the October 1990 version) and a Golden Master of the OS.
