Le cave se rebiffe (The Counterfeiters of Paris) (1961)

"Le Dabe" retired many years ago and now he lives in the Tropics where he owns stables and horses. He is a very rich man. He was the king of all money counterfeiters. He is contacted from Paris to organize a new job. He says no. But when he finds out the the currency that should be counterfeited is the Dutch florin, he accepts immediately. He retired after having counterfeited 100 florin notes just before the Queen Wilhelmina retired them from circulation. He flies to Paris. But the gang is not to be trusted, at least not all of them.