This is a keychain from the Hungarian Peoples Republic (1949-1989), made with a conch seashell inside. About 1.375" in diameter. Made of what i believe to be Bakelite.   

Shipping Policy: Domestic postage includes tracking number. "Int'l Economy Shipping" shipped as a letter, usually with tracking . "USPS First Class International" includes tracking. For combined postage, i ask the full shipping price for the first badge or medal , and then an extra $0.50 for each item after (with extra discounts to orders of 6 badges/medals or more). If you purchase several items, please wait for me to send you an invoice with adjusted postage before paying. If eBay will not allow you to request a total, I will refund overages after paying.   ALWAYS SHIPS FROM USA. 

Thank you for your interest in history and Socialism!