NAVIGATION
Nickel Iron Molybdenum foil, 0.102mm (0.004in) thick, annealed
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Platinum 10 wt% Rhodium wire, 1.0mm (0.04in) dia
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Brass foil, alloy 260, 0.3mm (0.012in) thick
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Brass foil, alloy 260, 2.0mm (0.08in) thick
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Brass foil, alloy 260, 0.81mm (0.032in) thick
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Brass spheres, alloy 260, 3.18mm (0.125in) dia
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