The carbonia gun is the Model O1911, and they have been selling around $1,800. Colt's also made the Model O1918, which has a black oxide finish. The carbonia guns are a little more collectible, but both models are becoming quite pricey. I've seen the Model O1918s sell for around $1,600. If you can get either gun for $1,100 NIB, that's a great price.