This Numista page has a lot of different P numbers and the last 2 dates (2008 and 2010) belong to P# 89, which do not appear in Reference numbers list. https://en.numista.com/catalogue/note208116.html
Numista page https://en.numista.com/catalogue/note241222.html is an entry for P# 89 and I would suggest deleting since so many other P numbers have been collapsed into the first page.
Will