Bohemian Rhapsody played on old computer beeps

A member of theLEM PowerBooks list got their hands on a factory-sealed PowerBook 1400, and shared the unboxing photo set:

I found a great article about the whys and wherefores of plastic yellowing in classic machines:
Vintage Computing and Gaming | Archive » Why Super Nintendos Lose Their Color: Plastic Discoloration in Classic Machines
The article focuses mainly on the SNES, but mentions old Macs as well, and should apply equally to anything [...]