Looks like a zinc type 1.27.3 (as attributed by Frank Heukmemes in his book).
As far as I know it is by an unknown maker (or at least not yet attributed to anyone yet). You typically see these...
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Looks like a zinc type 1.27.3 (as attributed by Frank Heukmemes in his book).
As far as I know it is by an unknown maker (or at least not yet attributed to anyone yet). You typically see these...