Old FACIT calculating machine - Model C1 -13 - Functional - Made in Germany - 1950s

Hello, here is a (very heavy) metallic manual calculator produced by the german brand facit, in the 1950s. This is the c1-13 model, whose serial number is a - 294552. In an excellent state of conservation, for its great age, it has the merit of still working, even if a dash of adequate oil would do the greatest good for its mechanism. The instructions for use are not provided but can easily be found on the web. It's a nice collector's item. Thank you for your visit.