Comic Title: Blackhawk #139
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: August 1959
On Sale Date: June 11, 1959 Copyright Date June 11, 1959
Source: Library of Congress, Periodicals 1959

Newsstand Date June 11, 1959
Source: Newsdealer Magazine, V14 #4

Frequency: Monthly
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Title: "The Secret Blackhawk"
Pages: 8

Feature(s):
Blackhawk (of Earth-1)

Penciller: Dick Dillin
Inker: Sheldon Moldoff

Feature Character(s)

• Blackhawk (last appearance in Blackhawk #138; next appearance in Blackhawk #139)

Supporting Character(s)

• The Blackhawks (last appearance in Blackhawk #138; next appearance in Blackhawk #139)
• Hendrickson (last appearance in Blackhawk #138; next appearance in Blackhawk #139)
• Stanislaus (last appearance in Blackhawk #138; next appearance in Blackhawk #139)
• Andre (last appearance in Blackhawk #138; next appearance in Blackhawk #139)
• Chuck (last appearance in Blackhawk #138; next appearance in Blackhawk #139)
• Olaf (last appearance in Blackhawk #138; next appearance in Blackhawk #139)
• Chop Chop (last appearance in Blackhawk #138; next appearance in Blackhawk #139)

Villain(s)

• Barton and his henchmen (no further appearances)

Other Character(s)

• Rob (a robot Blackhawk; no further appearances)

Synopsis:
The Blackhawks use a newly designed robot Blackhawk to get them out of a criminal trap. Blackhawk then sends the robot after the criminal leader. A high tension wire causes the robot to malfunction giving temporary control to the crook. The crook uses the robot to committ several robberies. Blackhawk finally regains control using a voice override built in to the robot.