What does the word seranco on a EPNS tea set mean or stand for?

The term "seranco" on an EPNS (Electro-Plated Nickel Silver) tea set typically refers to a specific brand or manufacturer associated with the production of the tea set. It may indicate a particular style or design attributed to that brand. EPNS itself denotes the composition of the metal used, which is nickel silver plated with a layer of silver to enhance durability and appearance.