ENPS marked - like to learn more info

HI there. People have been really helpful on this site.
I have gone over everything and I going to post the things that i think are worth something or that i am curious about.
These pictures are of the set that HAS espn stamped.
Different patterns etched and way they are stamped.
The ring is silver …
Questions I have

  1. IS there any way to date this silverware?
  2. What are the handles made of.?.
    Any help really appreciated .

The posting will be similar looking flatware but different stamps please take a look
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