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SHIPWRECK EFFECT A a coin exhibiting minimal surface disturbance from saltwater exposure, and exhibiting superior eye appeal for a shipwreck artifact.
SHIPWRECK EFFECT B a coin showing evidence of light surface disturbance from immersion in saltwater, and may have some areas of moderate disturbance, not affecting central design elements. Coin possesses above-average eye appeal for shipwreck recovery coin.
SHIPWRECK EFFECT C a coin displaying moderate disturbance to its surface from exposure to saltwater, while possessing at least average eye appeal for a recovery specimen. Accurate attribution and identification is not hindered by any surface impairment.
SHIPWRECK EFFECT portions of the coin exhibit heavy to severe disturbance from saltwater exposure, with metal loss affecting the design. While accurate identification and attribution may be possible, it is no longer possible to draw conclusive determinations about the coin’s surface prior to saltwater exposure.