It is a progression, but in 1979, coins were shipped from the mint in bags and rolled at banks or security companies (e.g., Brinks). Those bags were fed by multiple presses, and fill by weight. The odds of finding sequential strikes in a roll, are very low...
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert Oppenheimer
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Content of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_US
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