A straight pull wooden handle corkscrew with dusting brush. This example marked “C. VIARENGO PATENT” on the flat shank. Carlo Viarengo was granted this patent No. 10668 on the 10th May 1898. It covered the addition of two “helically disposed cutting blades” at the end of the shank; their purpose to cut away the top of the cork that had been “hardened by atmospheric influences”, thereby easing the withdrawal of the cork. Perfect grooved helical worm. Circa 1900.