A comptometer model 3D11 adding machine and cleaning equipment

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1. Kyle Rankin (kyle@social.librem.one)'s status on Sunday, 24-Apr-2022 02:11:20 UTC Kyle Rankin

   This evening I'm cleaning, repairing and refurbishing a Comptometer model 3D11 from the 1950s. This was the last Comptometer the company made and has its final speed and accuracy improvements before the world moved to electronic calculators.