Inspector Eagan & bombs - Glass negative photogrpah. Public domain.

Photograph shows Owen Eagan (1957-1920), a bomb expert in the New York City Fire Department's Bureau of Combustibles. He is holding a bomb recovered from an attempted anarchist bombing of St. Patrick's Cathedral, New York City on March 2, 1915. (Source: Flickr Commons project and New York Times, March 3, 1915)