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Ball Hamilton Pocket Watch Grade 999P 21 Jewel Official Railroad Standard Housed in this Ball Model 10K Gold Fill Case circa 1925 - The Pocket Watch Guy
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Ball Antique 16s Brotherhood BLE 17 Jewel Railroad Pocket... for £2,021 for sale from a Seller on Chrono24
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Rare 23 Jewel Ball Hamilton Grade 999N - The "Official Railroad Standard" Pocket Watch - The Pocket Watch Guy
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