There is a very small weak s under the 3 not normal size or thickness ive searched for something similar and nothing.. Help please is this some kind of error
Nope, don't think so. It's a random mark that coincidentally happens to look like an S. Edited to add: the shape and size are not correct for it to be a misplaced mintmark or dropped letter. Pareidolia, is what that is. Which is a polite way of saying, "you're seeing things". Don't feel bad, though- we've all had a case of pareidolia a time or two. I'm not an error/variety collector, but I'm pretty confident in telling you that what you have there is not an error coin.
A legitimate question @Tiffany Lynn Arsineau - I often 'suffer' from pareidolia - especially when cleaning ancients. I think I see an unusual feature and it turns out to be something normal. I find it rather fun.
For me, it always happened when I dug a really low-grade coin while metal detecting on colonial era sites. Either a corroded old copper or a worn-slick piece of Spanish silver. I'd squint at it every which way, with different angles of lighting, to try and figure out what the date on the old coin was. Often it was a fruitless endeavor. And knowing the date wouldn't have made such low-grade problem coins any more valuable, in the wretched condition they were in. It was just a matter of burning curiosity for me. When you're that eager to see something, you often will.
You just imagine that you see an "s". I also see a "7" to the right of your "ghost s", but common sense tells me that it isn't a "7".
As with the others, you are seeing something, but not a mint mark. A dig on the field of the coin that has appearance of being an S. As you develop your eyes over time you will start to dismiss these on your own. But even the savviest of collectors can be fooled from time-to-time, so be patient.
@Tiffany Lynn Arsineau I clearly see the shape you do and instantly identify it as the letter S, but it is the wrong size and shape to be a mint mark, so have to agree with the others that posted it was pareidolia. Good eye, but keep looking.
There is a pattern of marks that resemble the letter S. You see it, I and others see it also. When you have studied the minting process more and familiarised yourself on how mintmarks look, you will have learned something to help you distinguish the difference between random coincidence and something genuine. Here is a link to a site that explains these things as well as showing clear examples of genuine errors and varieties. Hope this is of use to you as it has been to a lot of people https://doubleddie.com/