Clark Sawyer Co. c 900

Hello, thanks for taking the time to read my ad. I figured before I go to a jeweler id come on here an see if anyone could help. I have clark sawyer co. Forks, that has almost a small sheild with what I believe says C 900 in it. These forks are kinda heavy an kinda hard to bend, so I really cant tell if it’s plated, coin or what? Please help !