Tugboat Hercules
Subtitle: historic structure report, 1990
By: prepared for the San Francisco Maritime National Historical Park, the National Park Service ; prepared by Tri-Coastal Marine, Inc.
Contributors: San Francisco Maritime National Historical Park (Calif.)
Publisher: U.S. G.P.O.
Published: 1991
Place of publication: Washington
Language: eng
Number of pages: 116
Subjects: Hercules (Tugboat)
Notes: Includes bibliographical references (p. 115).
"Historic structure report."
Includes measured scale drawings on 5 folded leaves.