Design with practical use by Dieter Rams. The Braun Company from Germany produced various calculators which are very clear in design! Both work as they should (batteries not included). There is a model 4776 with protection case and a 4835 (case fit’s both models). The design is classical Braun and they only measures 7,5 cm or 3 inches wide. There are small signs of use but nothing major, some scuffs on the logo on the 4835 and some scratches on the protective case. Selling for use again or as a cool desk display piece. Do check the attached video to learn all about the designer Pieter Rams!