The tin plates (this one on the back wall of the Borda Gardens) advertise not an insecticide but a medicinal cure-all effective against coughs, colds, 'flu and nasal congestion.

Boxing advertisements like this were a feature of Cuernavaca walls in the 1930s. Lowry at the point of composition had a flier like this in his possession, and presumably quoted from it exactly; but 8 November 1938 was a Tuesday, not a Sunday (however, the days and dates are true for 1936, when he first arrived in Cuernavaca). Photo courtesy of Raul Ortiz y Ortiz.