Postby AG2012 » Sun Jul 28, 2019 3:43 am
Hi,
It is an Orthodox cross (ICXC stands for Jesus Christ in Cyrillic).Newer production with millesimal .585 fineness.
St Petersburg modern assaying system does not use old town mark.Since 2000 in ex Soviet republics new marking system was introduced (girl`s head with kokoshnik for Russia),meaning the pendant here does not have official Russian marks and could be from elsewhere,likely from Greek Orthodox countries.
Regards