Check the listing for details. Vintage Mechanical Calculator THALES PATENT. Condition: Used, Made in Germany. Listed at 167.34 USD. Magnificent mechanical calculator from the prestigious German brand Thales, Patent model. A true masterpiece of mid-20th century engineering, recognizable by its robust design and industrial gray finish typical of the era. This model with sliders and crank is a sought-after collector's item, ideal for vintage, industrial office decoration or for enthusiasts of precision mechanics. • Mechanism: The machine appears to be in working order. • Please note: Some keys and cursors are currently a little stuck. The interior mechanism must be cleaned and lubricated to restore its original fluidity. • Aesthetics: Good general visual condition (see photos). The paint and “Thales Patent” markings are well preserved. It stands on its four original rubber feet. Sold as is, perfect for a light restoration.