After the bankruptcy of Longman & Broderip, Francis Fane Broderip was in partnership with George Wilkinson until his death in 1807. On the basis of the enamel plaque, I would be inclined to date this piano to the early part of this partnership. Technically, it is very similar to the late Longman & Broderip pianos. This is perhaps hardly surprising, even if his entitlement to the patents held by the bankrupt firm is questionable (the rights were transferred to Clementi & Co, successors to L&B).
It's a nice-looking piano, with a good case. The nameboard frets and enamel plaque are good; these enamel plaques are often chipped or cracked, and expensive to repair. The top line of the piano appears to be straight, suggesting that this one is not appreciably twisted. This is good, because such twists are difficult to correct. Internally it appears to be mostly undisturbed, which is what collectors and restorers like, although I think that some of the tuning-pins are oversize replacements. The stand retains at least three of the casters (hopefully four!)
It does require a full restoration, but this preferable to trying to undo damage which might have been caused by a previous poor job. The brass paterae (bolt-covers) on the corners of the stand are missing, but replicas cast from originals are easily obtainable. There are a couple of splits in the soundboard, one at the back, beyond the treble strings, and a separated joint at the bass end of the bridge. Such splits are very common and usually do not have any effect on the sounds. They can also usually be repaired by shims from above. There is some damage to the back-right corner fret, and the cause for this should be checked.