Casio CASIO calculator 12 digits orange mini just type MW-C20C-RG-N - Walmart.com
casio inc. hr-100tm mini desktop printing calculator - Walmart.com
Hardware Database | Page 18 | IT History Society
Andrew Braybrook on X: "Here are my two trusty calculators from the `80s. Both still working, both do hex. Might even be the original battery in the fx-570. I bought the solar-powered