In order for me to properly assess what you have I will need to see images and clear, in-focus close-ups of the mark.
Please send the photos at your convenience. There is not an extra charge to provide more pictures here.
When taking a clear close-up try using the macro function on your camera. It looks like a small flower icon. This will allow sharper focus at a closer-range.
I am wondering if you are still interested in having your item assessed?
I look forward to reading back from you.
From the description an 800 plus a star would indicate it is likely post-1968 Italian sterling. However without seeing it, I cannot be definitive
Can you please provide any photos at all? There are none attached here. The iPhone camera function does have a macro selection as well.