Lydia,
One of The Mariners' Museum archaeological conservators here. I agree with Nidia Navarro-Potel, I would suggest to keep them as there can be technical and historical information in the original pieces that even the best reproductions won't have. Things like style of manufacturing, materials used, quality of manufacture, just to name a few (if you need to argue your case). I'd suggest just putting them in storage and documenting what location in the ship they originated from.
Best of luck!
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Laurie King
Archaeological Conservator
The Mariners' Museum and Park
Newport News VA
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