punctuation - Is it acceptable to omit the last period of an acronym?

After reading this post, I was struck by the omission of the period (full stop) at the end of the acronym given.

A.V.C

I've never seen this before here in the States. Is it permissible here? In England? Elsewhere? Is it common anywhere?

Answer

I have never seen such a usage. I think it was a misapprehension made by the OP of that particular question.