SCIENTIFIC AMERICAN, New York, May 7, 1904  The front cover of the issue is entitled "The Opening of the Louisiana Purchase Exposition" which is comprised of two photos with additional photos inside the issue. Within the issue is "The Russian Ice-Breaker 'Ermack' Capable of Forcing Her Way Through Ice Twenty-Five Feet Thick"; "High-Velocity 6-inch Wire-Wound Gun for the United States Army"; "A New Electric Clock" and many more articles and advertisements.

Complete in 16 pages measuring approximately 15.5 x 11 inches,a small library ink stamp is on the front page illustration, otherwise is in very good condition.