This booklet contains extracts from Don Quixote and appears to have been produced to raise money for the Livorno Committee for the National Opera of Scaldarancio. A scaldarancio was a smokeless heater used in the trenches to warm food. It was made of paper soaked in grease and wax, or paraffin and able to burn for about 15 minutes, allowing soldiers to heat their meals.
Scaldarancios were made by civic committees, which looked after the children of the dead or wounded. The committees were composed of volunteer citizens, usually women. In order to raise money for the committee, benefits such as the one advertised by this booklet would be organised.