Help with "Die" information, Please [solved]

I recently brought this Victorian Shilling, based on condition and date.  Having looked it up on Numista, there seems to be many variants.  This was sold as “probably Die 3”, but I am not sure what this actually means and how to identify this on the actual coin. It weighs 5.6grm and is 23.5mm.

Is that a 3?

N#7248

My eyes are not that good, but I think it is.   Thank You for pointing that out for me.

I know in this case you might not have known where to look for the die number, but I recommend getting a loupe for the future. I have a really cheap 13x magnification one and it does the trick for most design elements too small for the naked eye!

Thank You - that's a good idea.

Using this forum is helping me develop my knowledge, So Thanks to Everybody.