This specific piece dates back to a classic era of transatlantic travel, long before modern cruise lines took over. You can verify its genuine maritime heritage through several key markers stamped on the back:

Key Identification Details
* The Logo & Company name: The backstamp proudly displays "Cunard White Star" surrounded by a circular nautical rope pattern. This joint name represents the historic 1934 merger between rival shipping titans Cunard Line and White Star Line (the owners of the Titanic). The combined company operated under this exact name from 1934 to 1949, narrowing down the age of your piece perfectly.
* The Manufacturer: It was manufactured by Minton China, a highly prestigious British pottery manufacturer known for supplying premium, durable bone china to luxury liner fleets.
* The Shape & Function: This distinctive asymmetrical, single-handled shape is an authentic "steward's shell dish" or nut/butter dish. They were used heavily across the fleet's dining rooms for serving sliced lemons, nuts, condiments, or pats of butter.