Republic As identification

[clem.fandango]

Dear all,

I wonder if you could offer some advice about this rather battered old coin. The obverse has Janus and the reverse is almost entirely blank. I can't seem to find a match for the style of the pillar or column intervening between the heads on the obverse. 10.45g, 28mm max. Any guidance appreciated.

[shanxi]

Janus is not the usual type. It is combined with an "altar", similar to this:

https://www.acsearch.info/search.html?id=4497428

[clem.fandango]

Thanks so much! Much appreciated.