Probus and Jupiter "bronze" coin

I recently acquired this coin described by the seller as a “Probus Antoninianus”.

Searching for it on Numista I noticed no bronze coins are listed but instead all are silver:

Search the catalogue – Numista

The closest match I could find on Numista is this one (listed as silver but the photos don't look silver to me)

Antoninianus - Probus (IOVI CONSERVA or IOVI CONSERVAT or IOVI CONSERVATO) - Roman Empire (27 BC - 395 AD) – Numista

Could this coin have been “silvered bronze” and the silver wore off.  If so why is it listed as silver?

Thanks

There might not be an option to put silvered bronze.

When the antoninianus was introduced, it was a silver coin but during the 3rd century it was rapidly devalued. By the 270s, it's silver content was around 5%. (There is a nice graph on wikipedia, how the silver content changed: https://en.wikipedia.org/wiki/Antoninianus ).

By the time of Probus this was basically a bronze coin, but technically the coinage was still ‘silver', although that was mostly a fantasy at that point. I think that's why these are cataloged as silver.