This is a badge from the Peoples Republic of China, promoting the Great Wall of China (also known as "The Long Wall" and the "10,000 Mile Long Wall". I would expect that these were made four tourists to said wall. 1.625" x 1.125" and enameled on gold metal.

Location: 700/B19

Shipping Policy: Domestic postage includes tracking number. "Int'l Economy Shipping" does not include 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. Should eBay not allow you to request a total, then I will refund all overages after payment. ALWAYS SHIPS FROM USA. 

thank you for your interest in history and Socialism.