Another visit and detailed examination is required for these. I don't go out of my way normally to buy these things, but he was selling and they appealed to me. He lives right out in the sticks so my visit won't be anytime soon.
According to the item description, the medals in the brown box are copper (CU). France, " Exposition Coloniale 1931 ", a SET OF 4 MEDALS - AFRICA - AMERICA - ASIA - POLYNESIA; 32mm medal in Copper, by Desvignes, Morlon, Bazor and Mouroux, in very fine condition as scanned, case only very good, stamped "CU" with horn (Paris mint). Chris
according to the person selling the ones in the brown box had this in the description... link: http://vi.vipr.ebaydesc.com/ws/eBay...der=1&oneClk=1&secureDesc=0&oversion=8ab7aee0