AUS 485 SA - Spencer Gulf and Gulf St Vincent atoll The upper “Black” scale (the
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Description
AUS 485 SA Spencer Gulf and Gulf St Vincent atoll The upper “Black” scale (the The upper “Black” scale (the one more usually used) reads directly in gauss of a uniform magnetic field oriented parallel with the centerline of the instrument scale Australia North West Coast Western Australia Approaches to Port Walcott Australia South Coast South Australia Spencer Gulf and Gulf St Vincent 1:500 *Laminating available by clicking here*