strictly vinegar, Kai. as for the pattern itself, i don't think i can get it better than that. just to know that it's twistcore is good enough, lol. personally, i don't like when the FeCl is used as an etching agent since it gives that burnt look...
and to think i passed by this particular piece and just looked at it countless times for a couple of days before finally pulling the trigger.
additional pics. these were taken while i was in the process of etching it
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