Generally It was established pre-revolution around circa 1905 and was discontinued circa 1985. There is a non-Cuban brand with the same name.
History María Guerrero was created by the owner of the Romeo y Julieta factory to honour a famous Spanish singer. Thereafter it became a sister brand of Romeo y Julieta. At the time of the Revolution, this brand had 25 different cigars listed. For unknown reasons, most of these were discontinued early after the revolution. There was only a single cigar left in the range when the brand was eventually discontinued.
Standard Band A Pre-1960 to c1985 Well defined embossing