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Old 05-01-2017, 05:33 PM   #4
Northern Spy
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City: Powell River, BC
Vessel Name: Northern Spy
Vessel Model: Nordic Tug 26
Join Date: Feb 2012
Posts: 4,075
Poster child crevice corrosion.

Edit: I downloaded it and zoomed in. Not so sure. Possible element of galvanic corrosion. The wavy part in the foreground bothers me, unless you find a chip of steel in your packing, then definitely crevice corrosion.
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