Sheffield England Legacy Plate A1 Serving Set Spoon Tongs Fork Tarnished

Sheffield England Legacy Plate A1 Serving Set Spoon Tongs Fork Tarnished Patina. The serving set measure. approximately 12". Tongs measure 10". Great Pre-owned condition. They are tarnished and could use a cleaning. I'm not sure what brand the tongues are or if they are silver plate. There are no makings but they are tarnished