My ‘old’ calculator

This is my MkI Curta calculator. It was developed by Curt Herzstark in the 1940’s. It is made up from 605 finely machined parts and is capable of some advanced mathematics. By using this resource, I am able to calculate that my Curta calculator, with serial number 59065 was manufactured in November 1963, making it 42 years old. It is in fine condition and I intend to learn more about it and what it can do. I have multplication, addition and subtraction sorted… now I need to work on division, squares, roots and remainders! If you want to have a go at using a Curta calculator, you can try it out using this well made simulator.