![MASTER II (Master Calculator Co., probably 1972.) Legitimately rare calculator from an obscure manufacturer. : r/calculators MASTER II (Master Calculator Co., probably 1972.) Legitimately rare calculator from an obscure manufacturer. : r/calculators](https://i.redd.it/master-ii-master-calculator-co-probably-1972-legitimately-v0-t8sciphhl8ba1.jpg?width=2498&format=pjpg&auto=webp&s=0cd9dcfb63c5bbed878744bf04a20968000c3f42)
MASTER II (Master Calculator Co., probably 1972.) Legitimately rare calculator from an obscure manufacturer. : r/calculators
![Amazon.com: Calculated Industries 44080 Construction Master Pro-Desktop Advanced Construction Math Feet-Inch-Fraction Calculator with Trig Tool for Architects, Estimators, Contractors, Builders and Remodelers : Office Products Amazon.com: Calculated Industries 44080 Construction Master Pro-Desktop Advanced Construction Math Feet-Inch-Fraction Calculator with Trig Tool for Architects, Estimators, Contractors, Builders and Remodelers : Office Products](https://m.media-amazon.com/images/I/71PTZxkwURL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Calculated Industries 44080 Construction Master Pro-Desktop Advanced Construction Math Feet-Inch-Fraction Calculator with Trig Tool for Architects, Estimators, Contractors, Builders and Remodelers : Office Products
![Calculated Industries Construction Master 5 Calculator New – I.E.T. INDUSTRIAL ANTONIO PRIETO – SINCELEJO, SUCRE Calculated Industries Construction Master 5 Calculator New – I.E.T. INDUSTRIAL ANTONIO PRIETO – SINCELEJO, SUCRE](https://i.ebayimg.com/images/g/f~oAAOSwIddkAjKv/s-l1600.jpg)