v/Einar Ottarsen Onsøien
19.11.1941: EMPIRE BUILDER, sjøsatt for Ministry of War Transport, West Hartlepool, UK.
1.1942: TOBRUK, Polish Government (Gdynia-America Shipping Lines, Ld,) Gdynia, Polen,
1951: TOBRUK, Polskie Linie Oceaniczne (Polish Ocean Lines), Gdynia, Polen,
6.1968: Hugget av Gdansk Remontowa, Gdansk, Polen.
Maskineri:
Trippel dampmaskin, 3 sylindere diam. 24 1/2", 42" & 70"-48".
Maskineri bygget ved Central Marine Engine Works (W. Gray & Co, Ltd) West Hartlepool, UK.
Lloyd's Register, diverse årganger,
Miramarshipindex.nz
http://www.plimsollshipdata.org/ship.php?ship_id=36281&name=Tobruk