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Bog roll my friend! a little square folded and meticulously threaded between the scales will, once worked to and fro, dry your inner scales. I am able to do this, air dry the blade for an hour, and...

Best bet is hand rubbing with maas, flitz or some other metal polish. If that is a Wapi, you have a lot of metal in that blade and that will be your friend as far as trying to put some elbow grease...