Well, here's a pretty good acquisition I think! It is an example of the 1860 penny F15 dies 4+D, but with the I of BRITT struck over a T (or vice versa). Ok, it is a detector find and has its issues, but the base coin is solid enough and not too worn, and the error is clear.
Only one other was known, I believe, and is on Richard's rare penny website. Interestingly, I can confirm that actually it is the modified version of obverse 4 with central cut fishtail, which also would appear to be true of the one already on Richard's website, but not sure if this was observed at the time?
Pictures below (and in next post too...) and feel free, Richard, to add them to your penny site.
Not that I would ever contemplate selling it, but what sort of value might it have given on the plus side its rarity, but on the down-side its overall state??