This article describes a new specimen of a Cork groat of Henry VI, found recently in Pembrokeshire, with novel features that advance understanding of the chronology of the Desmond coinages of the 1470s.
A sixth Cork groat of the readeption of Henry VI – Gregory Edmund, Christoffer Gompakis and Oisín Mac Conamhna
BNS Research Blog 
Hello Oisín,
Love the article particularly the geometry. I must correct your numerical work though. In the “Weight” paragraph for Figure 5 read Figure 6. 🥴
Best wishes,
Denis
Thank you Denis!