Democratic Republic of Congo - Joseph Kasa-Vubu - Palm Trees - 20 Francs - 1965 - Proof - Gold Coin - This coin was minted from 6.452 grams of .900 gold for an actual gold weight (AGW) of .1867 troy ounces of pure gold. Total mintage for this piece was approximately 3,000 coins. According to Krause's Standard Catalog of World Coins approximately 70 percent of the issued coins were melted.