Spectacular Thales Patent Model A Calculator with Original Box, 1913.

Spectacular Thales Patent Model A Calculator, 1913. This is a terrific calculating machine with original black lacquered case with different numbering registers neatly distributed. It has some rust marks that testify to the passage of time, but do not detract from the beauty of this magnificent piece. Technically it works perfectly. Hand crank or windlass mechanism with lever in cream color in clear contrast with the case. The white and red enamel numerals are perfectly visible. On the upper front it has the logo with the name of the brand: Thales Patent, with a decorative white lettering. Attached is the original wooden box in very good condition with the brand name painted on the top, and the original key! This type of machines are objects for science lovers. They have their origin in the XVII century, when the first adding machines were built, characterized by using a gear-based operation, which arose to alleviate the work activity of those people engaged in accounting work. This type of machines were already much admired at the time, based on a system devised by Willigodt Odhner, the variant of the one developed by Leibniz in the 18th century. Emil Schubert started working for Triumphator in Leipzig before establishing his own company in Rastatt (Germany). He built the Thales pinwheel calculator in several versions since 1911. It is a basic machine, one of the first windlass machines to use a spring-loaded car, which automatically makes steps to the left when the token at the front is pressed. The Thales mechanism is very similar to that of the Brunsviga Model A, but scaled to about 2/3 the size. Nostalgic piece...not to be missed!