William P. Griffin, left,who commands the third district police forces in Chicago, holds an object which he described as a homemade bomb, during testimony today before the Senate Investigation subcommittee in Washington. The group is probing the activities of the Blackstone Rangers, a Chicago gang.Listening at the witness table are the Reverend John R. Fry, right, pastor of the First Presbyterian Church in Chicago, and his attorney, William Brackett of Chicago.

Photo is dated 1968.

Photo measures 10 x 8 inches.