They are apparently just regular Curtas to which someone has taken a hacksaw. Please don't buy them and encourage this. The other is Curta stamps from Liechtenstein, selling for well over $100. You …

Your Complete Curta Portal, for information about Curta and Contina Mechanical Calculators.

Your CURTA Calculator is a high-quality precision instrument, fitted with automatic safety locks to prevent operator's errors. Therefore, to obtain best results and efficient service from your machine, …

Mar 4, 2015 · Find Curta calculators and related items for sale on this dedicated forum. Join discussions or explore listings from collectors and enthusiasts.

Nov 13, 2008 · Click on the Curta Icon in the upper left corner to go to this site's Contents/Collaboration page. The Curta was produced in two basic models:

Jan 31, 2019 · ListOfCurtas -- An ordered list of Curtas and their owners, in ascending numerical order of the Curta's serial number. You can add your name to the list, if you wish.

This puts your entry on a new line in the updated Curta list page, and aligns your information properly with that above and below. Also, if you normally use upper case letters somewhere in the middle of …

Jan 11, 2026 · Student ISO Curta Calculator The Curta.org Bulletin Board Forum Index -> Wanted ... Jump to: You cannot post new topics in this forum You cannot reply to topics in this forum You …

Inside a Curta, the "tens carry" subassemblies must be adjusted so that when a "9" overflows to a "0", the next more significant digit is incremented. The following procedure can confirm whether or not …

3 days ago · Tested Curta Type I on eBay The Curta.org Bulletin Board Forum Index -> For Sale ... Jump to: You cannot post new topics in this forum You cannot reply to topics in this forum You …