I found that it is quite hard to filter out the new 'Queen's beasts series' since we cannot actually search by either Commemorated Event, Series or Currency. My current filter is: https://en.numista.com/catalogue/index.php?mode=avance&p=1&l=&r=&e=royaume-uni&d=&ru=&i=&ca=3&no=&m=2&v=5+pounds&t=&a=2016-2019&w=&dg=&f=&u=&g=&c=&tn=y&cat=y
...and even without all of that, I cannot filter down that series, I had even tried with diameter and weight, too.
Normally, I would add some lettering on the series or something in the design but for this case, there's nothing else!
This is why I think we should be able to filter by Currency and/or by Commemorated Event, which are already available to add as info in the modification sheet:
