Overall: 6 x 18 x 1 in. ( 15.2 x 45.7 x 2.5 cm )
lithographed: on the cover and the interior: "B B B B PUZZLE/ BROOKLYN BRIDGE BLOCK BALL PUZZLE/ THE B. B. B. B. PUZZLE."
Long, rectangular mechanical puzzle with twenty-five balls and twenty-five blocks; lithographed image on the cover and inside of the Brooklyn Bridge with steamships and sailing vessels in the harbor below; cover and interior inscribed, "B B B B PUZZLE/ BROOKLYN BRIDGE BLOCK BALL PUZZLE/ THE B. B. B. B. PUZZLE."
Hofer, Margaret K. "The Games We Played: The Golden Age of Board & Table Games." New York: Princeton Architectural Press, 2003.
Due to ongoing research, information about this object is subject to change.