Sterling silver corkscrew with inlaid ebony

In my last post, I talked about this interesting corkscrew that I had acquired at auction. When I purchased it, it was so tarnished that I didn't even realize that it was ebony as well as silver until it had arrived. Up until then, I had not seen another example, and upon researching, I still hadn't found another example. That was until soon after another one showed up at a different auction house, but this example features two knives built into the handle. So I did the most rational thing that I could do, which was to buy it at any cost. I was able to find a similar corkscrew (same shank, helix, and knives, but different handle) in a friend's collection which was marked Gorham. Let me know if you have seen one of these beauties or if you're lucky enough to have one in your collection.