Addition of Baudouin I + Albert II

This banknote (https://en.numista.com/catalogue/contributions/modifier.php?id=203558) was made from 1982-1994, which spans the reigns of two kings. Can a ruling authority be made with these two kings?

For notes like these, I always put it under the first ruler. I don't really think it's necessary to add that ruling authority, but other input would be nice.

It's the same with these coins:
https://en.numista.com/catalogue/pieces752.html

Starting 1994 they were struck under Albert II but the design stayed the same since 1952 to 2001.
The fact that alle coins have Baudouin I as ruling authority is not correct but also not a big issue...

Indeed, we do not have a proper solution for these pieces issued during several rulers.
But duplicating authorities is not a solution, sorry.
regards