new collector needs help

[mrs_chicken]

I have a cake plate that was given to me by an elderly neighbour and I am having trouble finding what the markings mean. It has the word Renown in scripted writng and EPNS A1 stamped on the bottom. I know what epns is but can't find out about the rest. Can anyone help?
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[Waylander]

"Renown" may have been the design, or the maker. Not sure. The "A1" relates to the (real or claimed) quality/thickness of the plating.

Waylander
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