Giftige of ziekteverspreidende geleedpotigen van Kongo. 2 : De zwarte schorpioen : Opisthacanthus africanus (Simon) / Liebig's Extract of Meat Company.

Number two of six from the 'Harmful Insects of the Congo' series of trade cards issued by Liebig's Extract of Meat Company in 1956. The front has chromolithographs of a man with a stick and the scorpion species Opisthacanthus africanus. The reverse has an advertisment for Leibig soups in bags, and information about the ecology of Opisthacanthus africanus.