This Atom, according to Chris Turner is in a black pre production case, they would use any colour plastic that happened to be in the Hoppers to test the quality of the moulds.
This Acorn Atom has found itself with an issue 5 mainboard installed at some point, probably put in this black case as it was spare at the time, and would have stood out if it was being used for any special project.
Date: January 1980
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This exhibit has a reference ID of CH530. Please quote this reference ID in any communication with the Centre for Computing History.
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Hard Disk HD001 - HLF Completed Projects