"1) as far as I know, the only countries that have made patterns are France, Great Britain and the US. Sweden issued a circulating coin, i.e. the 1 carolin, in order to comply with the recommendations of the conference, but I do not know if there were any patterns made for this coin

2) the French patterns of 25 francs = 10 florins and 25 francs = 5 dollars were originally struck on the initiative of M. de Parieu, president of the conference of 1867 (and also of the conference of the Latin Monetary Union of 1865). He first had 15 pieces struck of the 10 florins pattern, of which 6 were given to the French imperial family. Then, he had 15 pieces struck of the 5 dollars pattern, of which some (6?) were also given to the French imperial family. In the years 1870-1872, another 20 pieces (probably 10 pieces of each type) were restruck by the Paris mint with the approval of the Minister of Finance, in order to satisfy the wishes of several collectors. In 1880, the Coin Cabinet of Vienna asked to have 1 piece of each type restruck, in order to replace the original pieces it had received in 1867, which seemed to have disappeared. This demand was not accepted by the French Government. Consequently, one can assume that 25 pieces of each type were struck, of which not more than 19 may be in public hands.

3) The goloid coins, struck by France and the US in 1879- 1880 may be considered as patterns made as a result of the 1878 conference

4) No patterns are known for the (Paris) 1881 and (Brussels) 1892 conferences, but the Belgian Government issued a rare medal (in silver and copper) to commemorate the visit of the Brussels Mint by the deleguees of the 1892 conference."