Don't know anything about this, I am liquidating a large collection of my father, who was a 94 year old APS member.  I am relying on his notes attached to each item and whatever information I can glean from the internet. Hopefully the pictures will help but if you want better pictures, let me know.  He had been a collector and dealer of Ryukyus, Marshall Islands, Palau, US and many others for 70+ years.