Highly scarce vintage fountain pen signature on a roughly 2x4-inch portion of a pale grey slip, acquired in-person in the 1940s and affixed in later years to a slightly larger piece of white paper. In good condition, with the autograph tipped to the paper with tape. Familiar-faced Charles Trowbridge entered films as a leading man during the silent era, but hit his stride in the 1930s and 1940s, in assorted character roles at Paramount. With his rangy build, piercing blue eyes, premature gray hair, and serious countenance, he became a staple performer in a long string of crime, horror, sci-fi, and fantasy films, typically cast as well-meaning, but quickly knocked-off personages, most notably in Mad Love (1935) with Peter Lorre, After the Thin Man (1936), The Invisible Menace (1938), The Man They Could Not Hang (1939) and Before I Hang (1940) with Boris Karloff, The Mummy's Hand (1940), The Man with Nine Lives (1940), Mysterious Doctor Satan (1940), Charlie Chan at the Wax Museum (1940), Dressed to Kill (1941), The Falcon in Danger (1943), Captain America (1944), Mildred Pierce (1945), Charlie Chan in the Red Dragon (1945), and Valley of the Zombies (1946). His extensive work in other genres included classic films like I Take This Woman (1931), Libeled Lady (1936), Captains Courageous (1937), Our Town (1940), Sergeant York (1941), Meet John Doe (1941), King of the Texas Rangers (1941), They Were Expendable (1945), The Paleface (1948), and The Last Hurrah (1958).