Armenian Eternity Sign

[Marco Cimarosti]

Armenian single-byte character sets contain a character called "Armenian
Eternity Sign" (it looks like a helice or a flower; see it in
<http://www.freenet.am/armscii/armcs-006.html>).

What is the meaning and usage of this symbol?

How does is map to Unicode? If there is no mapping, was it ever proposed for
addition?

Thanks.

_ Marco