Owned and managed by the Panama Canal or Panama Railroad Company. Ex-Jack Twohy (2-1823). Built of steel. Gross tonnange 171.00 tons, dimensions 127.9 x 23.0 x 9.5 (depth) feet, built at Camden, New Jersey, USA in 1908, purchased at Norfolk, Virginia, USA in 1908, estimated value 25.000 US dollars, crew numbers 35 men (included 9 officers). Coal fuelled.
Source
Fiftieth annual list of Merchant vessels of the United States with official numbers and signal letters and lists of vessels belonging to the United States Government with distinguishing signals. Year ended June 30, 1918. U.S. Department of Commerce, Washington 1919.