From the well known maker of quality slide rules comes this model M75. The first mathematical calculator by Aristo from Germany. It works fine on 3 AA batteries (not included). All functions seem to work, the keys respond well and the display is a beautiful red LED display. Included is the complete original box, the manual in 8 languages and a leaflet which shows more models. Everything is complete with signs of normal used and age. It measures ca. 15 cm or 6  inches tall. Do check the below video to learn all about the history of the calculator, or read Vintage collections: handheld electronic calculators.
