Do you know what year this photograph was taken? There's an interesting back story behind it, and we'll update this post later with all the details. Hint: the location is Central Park.

UPDATE: This photograph was taken on October 9th, 1911, and was captioned: Scene from the explosion. Reportedly a dynamite blast on that day killed four, and injured six others. From the New York Times the following day: "Four men were killed and six others injured yesterday morning when a pneumatic drill in a sixty-foot shaft that is being sunk in West Drive, Central Park, struck a stick of dynamite that was thought to have been exploded last Saturday night when the charges in ten holes at the bottom of the shaft were set off." Click through to read the full article.