
USS Grayback (SS/SSG/APSS/LPSS-574), the lead ship of her class of submarine, was the second ship of the United States Navy to be named for the grayback, a small herring of great commercial importance in the Great Lakes..

USS Grayback (SS/SSG/APSS/LPSS-574), the lead ship of her class of submarine, was the second ship of the United States Navy to be named for the grayback, a small herring of great commercial importance in the Great Lakes.
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