Most valuable missing assassination relic

[Lincoln Wonk]

How lucky we are that Osborne Oldroyd was fanatical about Lincoln and that Henry Riggs Rathbone pushed through legislation so that the treasure trove of artifacts now rests in Ford's Theatre's basement rather than in a vault in some collector's home. That said, I'd go for Corbett's gun or the calling card. Whatever happened to the ornate clock from Ford's green room, the one the actors checked when they heard all the noise down in the theater?