bjherbison
The correct usage is a dash instead of a reference code.
This isn’t a correct usage neither, if it’s not in the catalogue, it’s not in the catalogue, that’s all.
This sentence of the guideline is creating inconsistency:
If only a small number of coins are missing from a standard monograph (reference catalogue dedicated to a very specific topic) that is used consistently for an issuer, then an en dash (“–”) can be used instead of a reference code, to show that the coins are unlisted:
Because when I go to this page, it says: “Some items referenced in this catalogue”.
So or it's in, or it's out, but we can't say in the guideline:"…to show that the coins are unlisted:" and on the catalogue page saying: “Some items referenced in this catalogue”, we are saying 2 opposite things between guideline and catalogue.
Should we start to mention mint, where it would have been nice to see this coins struck instead of reflecting the reality? I mean, with the current guideline, it would surely not be a problem to mention this mint to this coin.