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<p>[QUOTE=&quot;springfld.arsenal, post: 44153, member: 54&quot;]<i>it looks to me like the &quot;corrosion pits&quot; in the plate were made when it was submerged in the acid wash and simply the oxygen bubbles that form were not feathered away as the plate etched.</i></p><p><br /></p><p>Possible I guess, if so he was using an etching method I&#039;m not familiar with.&nbsp; I used to etch metals and we covered the entire surface with a resist such as asphalt, then cut the design into the asphalt with scalpel, scribe, whatever, so that no part of the metal was exposed to the acid except exactly where we wanted it to cut.[/QUOTE]</p><p><br /></p>

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