Looking at them again this morning... I'm betting the location is near the ocean.
Looking closely, it reminded me of sample part teardown time after the 500 hour salt spray testing we would do for automotive components.
Things like the copper wiring, the rubber grips are pretty much trash and anything that wasn't plated is now iron oxide.
Real good examples of dissimilar metals from the galvanic corrosion charts is present.
I hope this is a lesson to someone: Never store your markers in a damp cave near the ocean.
Only place worse would be the storage locker on the Titanic.
Looking closely, it reminded me of sample part teardown time after the 500 hour salt spray testing we would do for automotive components.
Things like the copper wiring, the rubber grips are pretty much trash and anything that wasn't plated is now iron oxide.
Real good examples of dissimilar metals from the galvanic corrosion charts is present.
I hope this is a lesson to someone: Never store your markers in a damp cave near the ocean.
Only place worse would be the storage locker on the Titanic.
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