Merchant name retained.
(Str: dp. 15,942 n.; l. 440'2"; b. 36'; dr. 28'7"; s. 11 k.; cpl. 70)
Invincible, a cargo ship, was launched in 1918 by Bethlehem Shipbuilding Corp., San Francisco, Calif.; transferred to the Navy from USSB 17 October 1918 and commissioned the same day, Lt. Comdr. George H. Zeh in command.
Assigned to NOTS, Invincible took on cargo at Port Costa and sailed for New York 31 October via the Panama Canal. She arrived New York 25 November and departed for London with supplies for the Allies 11 December, arriving there 27 December.
Invincible left London 18 January 1919 and arrived New York 1 February. She made one more voyage to London before decommissioning 15 April 1919, and being returned to USSB the same day. The ship continued to sail for the Shipping Board and later for National Bulk Carriers, Inc., until the late 1930's.