[2] She was launched on 8 May 1957 by Aalborg Værft, at the time also owned by Lauritzen, for the Group's shipowning subsidiary Rederiet Ocean A/S and completed on 9 October that year.

[7] Commissioned on 28 September 1982 as an oceanographic support ship (NApOc) H-42, she was renamed Barão de Teffé in honor of Admiral Antonio Luis von Hoonholtz (1837–1931), founder and first director of the navy's hydrographic service.

[1][9] In her initial years she operated in conjunction with the oceanographic vessel Professor W. Besnard of the Institute of Oceanography of the University of São Paulo.

In 1994, the ship was recommissioned as a lighthouse vessel (NF) supporting major construction projects on Trindade Island and the coast of São Paulo.

[1] After failed Australian attempts to purchase her for conversion to a museum ship, she was scrapped in Rio de Janeiro in October 2007.