Fr Thomas Regan OSB of Our Ladye & St.Michael's, Abergavenny, sent me the above picture of the Missa Cantata there last Friday. Fr Regan came with three other priests from that part of Wales to the LMS conference at Oxford.
The vestment worn for the Mass was from the parish's medieval collection. It was donated by Henry VII, having been embroidered in 1498 by Robynett his court embroiderer. It was already 150 years old when worn by the Abergavenny martyrs St David Lewis (parish priest there for 31 years) and St Philip Evans (curate for 5 years) until his martyrdom in 1679.
The above photo was sent in high resolution so I have cut and enhanced as best I can the section showing the vestment: