RARE VINTAGE 8K Solid Gold COIN. Wood frame miniature France 5 Frank. Stunning collection of Gold Coins 8k. Measures in cm : 10 x 10. Note : STUNNING lot gold coins France 5 Frank. Wood frame with Stunning collection of GOLD COINS. The world's smallest gold 8K coins. The measures of each Gold 8k coin : 1,1 cm (diameter) with a weigh from approximately 9/10 of a gr to 1.0 gr!! Belonging to my private collection.