Thread: BSR
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Old 11-25-2019, 05:33 PM
Doug D. Doug D. is offline
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Join Date: Mar 2012
Posts: 6,028
Default Re: BSR

Appears to just indicate they needed more patterns than 26 single letters would allow for. Double letter (or a letter and a number) patterns are seen in both the older hand pour Red Mountain and the early automation period pans.
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