This "rotorevolver" was manufactured c. the 1860s. It is unmarked aside from the leaf pattern engraving and "23" on the bottom of the barrel and side of the turret. It is similar to examples of the Noel patent turret revolver we have cataloged in the past, but the turret has posts between the chambers rather than a gear/teeth design. We have seen other examples in this format. They may be early versions of Noel's design.