Such appeals became widespread, and were supplemented by the sale of special collections of postcards depicting the disaster. The different appeals were eventually subsumed by an official fund—itself established by a law enacted only four days after the explosion—and a total of 750,000 francs was raised. This at a time when the daily wage for a miner (a well-paid job compared to other manual work) was less than six francs. Over half the total was contributed by the "Compagnie des mines de houille de Courrières" and by the "Comité central des houillières de France" (Central Committee of French Coal Mines, an employers' association).