EPNS stands for Electro Plated Nickel Silver - another term for silver plate.
2000 stamped on a dish could mean anything. Usually it means the date of which the product was produced, but it could also be the company that made it.
Nothing its plated
EPNS stands for Electroplate Nickel Silver - a process that was less expensive than sterling. Most of these pieces started in England then spread as the process was improved. Go to silvercollection.it/electroplatesilver.html for more information. They would fuse sheets of silver to the top and bottom of (usually) copper although other metals have been used. As for 2s ? I am not sure mine is stamped A.1 and I am still looking for the indication.
From what I understand, it is silver, yet of a lower grade such as nickel silver. It was refed to often as 'blackened silver', or something similar. Whatever you do if you hope to sell it - do not remover the tarnish.
There is a seven-inch International Silver Company silver-plated candy dish that appears to match the description of your item (see discussion page) listed on eBay today [December 12, 2000] at a buy-it-now price of $9.95. Comparable dishes sell for $1.00 - $12.00. Silver-plated objects typically have little value as antiques because the silver content is extremely low.
Silver
To polish an old silver dish you should buy a good silver polish and rub it with a non-abrasive material. Silver can de delicatie so be careful!
reed barton 170 silver gravy dish . How much is it worth
Yes, I Want to change My Dish TV Package Platinum to Silver.
In French it translates to "dish money" A slight variation, plat argenté, means "silver dish" or "silver platter."
It's a traditional dish throughout England.
Beresford plate as far as I can ascertain: john Septimus Beresford 1876..1890 your dish is silver plated rather than silver.