steering-compass

Hanssen's sledge differed from the others, in that it had aluminium fittings instead of steel and no sledge-meter, as it had to be free from iron on account of the steering-compass he carried.

The South Pole~ The Start for the Pole 2009

Hanssen's sledge differed from the others, in that it had aluminium fittings instead of steel and no sledge-meter, as it had to be free from iron on account of the steering-compass he carried.

The South Pole; an account of the Norwegian Antarctic expedition in the "Fram," 1910-12 — Volume 1 and Volume 2 Roald Amundsen 1900

Hanssen's sledge differed from the others, in that it had aluminium fittings instead of steel and no sledge-meter, as it had to be free from iron on account of the steering-compass he carried.

The South Pole; an account of the Norwegian antarctic expedition in the "Fram," 1910-1912 — Volume 2 Roald Amundsen 1900

Hanssen’s sledge differed from the others, in that it had aluminium fittings instead of steel and no sledge-meter, as it had to be free from iron on account of the steering-compass he carried.

The South Pole; an account of the Norwegian antarctic expedition in the 'Fram', 1910 to 1912 2003