https://www.bbc.co.uk/news/uk-england-wiltshire-58028670
Link courtesy of Nigel Tallis on the dbmmlist, who also mentioned A letter written in 798 to King Coenwulf of the Mercians by Pope Leo III mentions a promise made in 786 by King Offa to send 365 mancuses to Rome every year (https://en.wikipedia.org/wiki/Mancus).
wow.....stunning coin. Interesting to see the descriptor Saxon on the coin.
It's in amazing condition