My father-in-law gave me this. It was either his father's or grandfather's. The blade is 2-1/4" by 3/8", overall length is six inches. It doesn't fold - the tang is pinned. The blade is marked The Real Pat Feb 10 1908 on one side and Geo Korn Razor Mfg Little Valley on the other side. What is it? It's the smallest straight I've seen and other than a Japanese kamisori the only non-folder I've seen. Maybe it's not even a razor?