Here's the font.
It looks to be of roughly the same vintage as Sir John Darrell (passim)- because- stylistic considerations apart- that appears to be a Tudor rose to the left.
The bowl is octagonal, with panels at the quarters carrying the symbols of the four evangelists. The one above is the angel of St Matthew.
More angels support the bowl. Whoever did the carving was a skilled craftsman- but a little shaky when it came to human anatomy. He has rather fudged the hands. I presume the whole thing would originally have been painted (because the medievals painted everything) and the shields the angels are displaying would have carried information- sacred symbols or heraldry- to tell us who the donor was and where their loyalties lay.
