Chalkous Of Which Ptolemy?

[John Anthony]

I find these little coins confusing, and would appreciate any help with the attribution.

On this coin, I read ΠΤ (in exergue, upside down), [ΟΛ]ΕΜ (on the left), and [ΒΑ]ΣΙΛ (on the right). But then there's one little letter left, which appears to be Λ. Would that Λ denote Lathyros, making it Ptolemy IX? Or am I misreading it? Is it Ptolemy X or perhaps even Apion?

Thank you kindly in advance.

[djmacdo]

I think everyone finds these little late Ptolemaic bronzes difficult.  I suspect they were issued seamlessly through several reigns, so it may not be possible to tie this down with certainty to any one ruler.  I hope our resident Ptolemaic expert on Ptolemaic AE will see this.  Nice specimen, by the way.

[glebe]

What is the strange X device below the head-dress of Isis? Find that and your problem is solved.

Ross G.