Mystery Core

Mike Loewen mloewen at
Thu Apr 30 12:56:20 CDT 2009

    Can anyone identify these boards?

    They're stamped IBM, with etched numbers LBJ5360, LBJ5403 and LKJ12470. 
The owner says they were given to him in 1978, and were supposedly from 
North Bay, Ontario.

Mike Loewen				mloewen at
Old Technology

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