Weight for bi and trimetalic coins

Hello,

The current way of expressing the weight on bimetallic or trimetalic is not optimal...
Let' take an example.
If you enter this item in your collection you will not be able to track the metal price as you will do with a standard gold item.
So, my suggestion is to enter the weight by part: core 7.80g, middle ring 13.39g, outer ring 15.32g.
Doing it this way the total weight of the coin should be calculated based on the total of the 3 parts so 15.32+13.39+7.80 = 36.51g.
And the value of metal can be calculated based on the 3 metals, in our example:
15.32g Copper = 0€
13.39g Silver (.999) = 9.74€
7.80g Gold (.999) = 376.82€
Bullion value: 386.56€
It would be better than the current absent value ...

There should probably also be a choice of defining whether inputs are good for the calculus and the ones that are not yet defined?
LP

Just ONE problem! Do you really want to smash your coin to weigh the individual rings? A bit crazy isn't it?

I think it might work for those modern gimmicky (bullion) coins, the weights should be on their "certificate" of authenticity.
It might not work for those old coins with silver and gold plugs and maybe not so easily for older bimetallics with silver cores.

Cita: "Sjoelund"​Just ONE problem! Do you really want to smash your coin to weigh the individual rings? A bit crazy isn't it?

​Obviously no, most of these data are available as these coins are quite recent. Also when it come to precious metal it’s always available, and this feature aims to correct these specific coins, for a 20 francs or a 2 euros the weigh of both metal is not really that sensitive.