Full disclosure, 2 of the small cocktail forks have been slightly marked and/or damaged. I picked this up from an estate sale and it is not marked as Sterling or 925 anywhere. It doesn't have any of the typical R&B markings on it and it doesn't even say Silver plated. After doing some research it seemed that even some silverplate should allow a magnet to stick but this did not so I wanted to have it tested to see if it was indeed sterling.I took a few pieces to a pawn shop who x-rayed it and they told me it was silver so I got excited! I took it to a bullion shop in town to sell, and their machine said it wasn't sterling. I asked them to test a piece of sterling they already had there which they did but we found out it also failed so their metal detecting machine was not calibrated or broken or something.
I was then referred to another large coin/bullion dealer who had an XRF machine and they were able to confirm it was not sterling but silverplated. The first shop snipped a tiny piece off the bottom of one of the cocktail forks to try to prove to me it was copper underneath which it is not. Then the second shop with the XRF machine filed a small line in the back of another fork to run it in their machine. I asked them to use the already damaged form but apparently they grabbed the wrong one. Anyway, that's all I really know about this set at the moment.
Please feel free to reach out with any questions or for more photos.