eBay
This is a Cypraea zoila marginata cowrie albanyensis form.  I am selling some of my grandfather's shell collection so I am not an expert on mollusks.  This particular shell was collected off West Australia.    
Buyer will be charged shipping based on actual cost plus $3 for packaging and handling.   
I am selling a few other shells so please see my other auctions.  
Please email with any questions.