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brian.m.rule241: Hot glass pressed mold project .
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brian.m.rule241: Preparing glass batch weights for 2 7/8 and 3 inch flat roundels .
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brian.m.rule241: Weighing of Brian's ZURN lens
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brian.m.rule241: Weighing of my NHRR back spectacle RDL .
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brian.m.rule241: Weighing in of a CORNING flat 3 inch RDL 1935 pattern.
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brian.m.rule241: Weighing in of a CORNING flat 3 inch RDL 1935 pattern.