Incorrect metal determination.

Have a nice weekend, colleagues.

   Why is silver mentioned as the metal of the coin when in all the examples where the coin is mentioned the metal designation billon is used?

N#60332    -we state that this is a silver coin, which is a rare metal 

At first glance, you can't talk about silver.

Perhaps there is some silver in the mixture and it is referred to as billon-that's why we should also work with this variant of metal - when we mention RIC 230 in the eferences and there is also written about Billon.

https://www.forumancientcoins.com/gallery/displayimage.php?pid=149949

Gallienus, Billon antoninianus, Rome. Sole reign. 20mm. GALLIENVS AVG, radiate head right. LIBERO P CONS AVG, panther walking left. Mintmark B. RIC 230, RSC 586; Sear 10281.- https://www.wildwinds.com/coins/ric/gallienus/t.html

https://www.google.com/search?sca_esv=10959785a6cd5531&rlz=1C1NHXL_csCZ927CZ927&sxsrf=ADLYWIIe7eZJKB6Ufoi-uKcsYUnWF_WQcQ:1720887151086&q=GALLIENUS+AVG,+radiate+head+right.+LIBERO+P+CONS+AVG,+panther+walking+left.&udm=2&fbs=AEQNm0Dg3jL7_nUV4_inb0jRKZuKZx2IIA0zQj2nIoYPgN35RKa7LgPYdXmO-7w1OLTfaHuOk-551kcFzigmFTmy1xkRqhudLnlN7VD1g2mio0J77yUxpQhVOeG7DK6UR6PKg0VHHyChTqr77K8gsChJdrRk6KyNq_6sAvJIgbIiUWMqVMwjmc0&sa=X&ved=2ahUKEwjX3tqatKSHAxUhgP0HHcOfCJgQtKgLegQIDhAB&biw=1093&bih=486&dpr=1.25

I could be wrong, but I'm putting it here not because I wouldn't be able to make a correction to the design of the coin. But due to the fact that if this is repeated often, the values ​​of the collections and the amount of metal are misleading. It is necessary to enter the metal correctly in the previous website during verification.

Ivan