Be cool to get a sense from the curator what made them think these pieces meant other than the obvious fame.
It's in Room 68, maybe you missed it?
https://www.britishmuseum.org/sites/default/files/2022-07/british_museum_map_june_2022.pdf
Here's a virtual visit to it:
https://artsandculture.google.com/streetview/british-museum/AwEp68JO4NECkQ?sv_h=0&sv_p=0&sv_pid=RxkgTGyMeXwHSmisqagmRg&sv_lid=3582009757710443819&sv_lng=-0.1265454358926945&sv_lat=51.51884274440813&sv_z=0.6911292499459274
Here's a video from the British Museum explaining the reasoning behind this in particular, which is an exhibition about money:
Bitcoin, cryptocurrency and their 17th century counterpart I Curator's Corner S4 Ep2
And here's the link of the museum gallery about money:
https://www.britishmuseum.org/collection/galleries/money