Haakon VII was constructed as USS Gardiners Bay (AVP 39), a Barnegat class small seaplane tender. She was completed in 1945 and served the US Navy until decommissioned in 1958. Upon transfer to Norway in 17 May 1958 she was renamed and entered service as a training ship. After 25 years in US and Norwegian service, she remains remarkably unchanged - her original guns, masts, cranes, and boats are mostly still present. The aged training ship was stricken in 1974 and disposed of.

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