Thales Mechanical Calculator, German, 1910.

If your eagerness has been to have the possibility to enjoy a piece of calculus in absolutely impeccable condition both in appearance and operation, you are looking at the machine that meets your expectations. Rarely have we come across an artifact of its kind in such amazing condition, both in terms of the machine itself and its corresponding transport box. It is the Thales model, serial number 6486 manufactured by the firm of W. Gil. Horras & Co. located in Dusseldorf, Germany. Its black enamel is homogeneous over its entire surface and all the numbering, both on the keyboard and on the result window, shows bright and intact colors. The chrome-plated parts reflect a vibrant shine and the lever operating areas covered with paste finishes show no cracks whatsoever. On the other hand, the case is free of dings and its dark walnut-like protective varnish does not show any scratches. The restoration has been superb. The operation is "smooth", the product of a not overworked and well oiled gearing: it performs all its operations more smoothly than if it had just left the factory, the result of a mechanics justly run in, filed, tuned to show its full potential. One of a kind.