This Coin >>> https://en.numista.com/catalogue/pieces5026.html
Has got a mintage line marked as "Proof (To be deleted)"
The reason for the request is this coin never existed in Proof form. It was put on Numista by mistake.
There are 16 members who are shown as having the coin in their collection.
They would actually have this coin >>> https://en.numista.com/catalogue/pieces73367.html
So those 16 members need to have their entry moved to the correct Proof coin, mintage line shown as "Proof Year Set" and then the incorrect one on the first coin can be deleted.
I found this error while in the process of updating Australian 50 cent coin entries.
Regards - Mike