Most silver plated tankards I see have engravings from the previous owner, and / or missing silver plate. These three have no engravings or missing silver plate. The taller (12cm High) of the three "Plato" plate is a silver brand name for David Hollander & Sons, named after their Birmingham factory "Plato Works." The other two are marked "Reliont" - a maker unknown to me (11cm High). All three weigh 997 grams.
