Brother 412 (Calther 412)
The Brother 412 is an arithmetic calculator with 12 digits precision and algebraic logic. It has 6 functions, 19 keys, and a display using Nixie tubes. The power source is Solar.
Facts at a glance:
If you have a Brother 412 that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements: