The stainless steel item is a vintage covered butter dish.
It features a rectangular base plate with raised, rounded borders to contain the lid. It has a deep, rectangular dome cover designed to shield a standard stick of butter. It is equipped with a small, circular, tiered metallic knob on top for easy lifting. The butter dish shows a brushed or slightly weathered metallic surface consistent with regular kitchen use.
Feint surface scratches exist due to use.
Height with knob: 10 cm, Length: 20 cm, Width: 11.5 cm