Curta.Org: Your Complete Curta Calculator Site

Scam Warnings:

There are two Curta scams going on right now:

• One is so-called "Cut Curtas," sold as "rare demonstration models." 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 can buy them directly from the postal service in Liechtenstein for $22, postpaid. Don't help the scalpers; buy direct here.