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ericodapro
05-23-2009, 07:21 PM
2 small wavy lines .. what is it?
koinmon
05-23-2009, 09:00 PM
Looks to be the copper coating seperating from the zinc core "bubbleing".
jcuve
05-24-2009, 03:46 AM
I agree with Koinmon, probably plating bubbles.