Großer Kreuzer (great/large cruiser) would actually be the correct designation here. The Imperial German Navy used this term to describe all of their cruisers over approximately 5,500 tons, regardless of whether they were armored cruisers or what the rest of the world would classify as battlecruisers. So, the bottom text probably should read something like "Die Kaiserliche Marine Großer Kreuzer S.M.S. Moltke."
His Majesty's Ship Moltke. Armored cruiserThe Imperial Navy Great SMS Moltke