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Brt-1742c. Wt = 11.78g. Diam =
17.8-18.6mm |
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Photo from
Bob Johnston |
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Wt = 11.69g. Diam = 18.1-19.1mm |
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Johnston
Collection |
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Wt = 12.04g. Diam = 17.1-19.5mm |
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Johnston
Collection |
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Clear AH 1222. Wt = 11.74g. Diam =
17.3-18.1mm |
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Photo from Bob
Johnston |
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