This calculator was bought in nearly mint condition.  As often, it has probably been stored for decades because which of some parts didn’t easily move.  After thorough cleaning and a bit of new thin oil it runs well again.

These photo’s were taken after a 2nd clean job. This and other mechanical machines tend to work well after a first maintenance job but after a year or so some parts tend to get sticky again.  May I should use them more often :)

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