
I strongly believe that to be a fantasy coin. I am no expert on Anglo-Saxon coins, but a couple of things here stick out and are not in line with what I do know about such coins:
- The portrait of Alfred the Great is not, well, great. His portraits on genuine coins are no artistic masterpieces either, but they have a different style and do look better than the one here.
- A Viking ship ... (it is no doubt Viking ship, with shields along the sides). Why would Alfred put a Viking ship on his coins? He was no Viking, they were his enemies. Putting the weapons of your enemies on your own coins seems weird. As far as I know, there are no coins by Alfred the Great with any ships at all (I may be wrong, not an expert ...).
- Staying with that ship a bit more: I find the depiction a bit too modern-looking for a 9th century coin. Some of Alfred's predecessors did have ships on their coins:
https://www.spink.com/lot/18011000044 It looks quite different, being a trade ship, which makes more sense to have on a coin, used in trade.