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Curta I Calculator In New Condition

Cruta calculator type i. The finest mechanical calculator fo the world. (first pocket calculator). Also a very fine christmas gift.

This curta is in new condition, although about 39 years old. It is a highlight for each collector, engineer and mathematician. There are no sings of wear on the surface, not even under the clearing ring. The fascinating mechanism is running very smoothly.

It's working perfectly with full function. The calculator was produced in july 1969 in liechtenstein/switzerland wiht the number 75084 from near 80.000 pieces. It is 85mm high, has a diameter from 53mm, weighs 230 g and has 571 parts. The type i is the first of the two types ever made and has an 8-place setting register, an 6-place indicating dial and a 11-place answering dial.

This exceptional piece of precision machinery was teh subject of a scientific american article the curious history of the first pocket calculator in the january 2004 issue curt herzstark built the most ingenious calculating machine ever to grace an engineers's hand the curta calculator. You find also an article in the readers' digest (july 2005). It comes withthe fine original special shock-resistant carrying can, also in very good condition. There are only some small scratches on the top.

Operation instructions with pictures in english (18 sides/copy). Comptuing examples in english (more than 50 sides/copy). Computing examples in german (very rare article from 1958 schweizerische bauzeitung/copy). The service manaul for curta i in english (more than 60 sides/copy).

A fine reprint from a early curta advertising paper in english (15 sides). wTo colored advertising papers in german (copys). And a copy of the readers' deagest article. I guarantee fast shipping and sufficietn insurance. If you vote buy it now, i pay shippign and insurance worldwide.