I soaked these 2 coins in distilled water for 3 days and got these 2 better scans. The one to the left weighs 7.45 g. The other to the right, just 5.6 g. Appreciate your ID comments. Thanks..
I believe Apollo is seated not just on "rocks", but on the omphalos, which was considered the navel or center of the world. There were actually several omphali established in the ancient world, the most famous being at Delphi. http://en.wikipedia.org/wiki/Omphalos