Teresa Alfaro Siqueiros de Prieto, Mexico (acquired directly from the artist)
Gregorio Shapiro, Mexico (acquired from the above in 1976) 
Acquired from the above 

Estado de conservación: Muy bueno. Presenta pequeños faltantes de capa pictórica en zona superior izquierda e derecha. En zona inferior izquierda presenta faltas de capa pictòrica de origen provocadas por pequeños abultamientos del soporte. En la zona inferior derecha, presenta dos manchas pequeñas que no alteran la firma. Se examinó con luz Ultravioleta y no se apreciaron intervenciones algunas en la pintura. This work is in very good condition overall. A few minor spots of pigment loss are present in the upper right and left quadrants. In the lower left quadrant, a few additional minor pigment losses are present due to buckling of the support. In the lower right corner, two minor surface accretions are present which do not interfere with the signature. Under ultraviolet light examination, no evidence of inpainting becomes apparent.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.

This painting is part of the National Heritage of Mexico and cannot be permanently exported from the country. Accordingly, it is offered for sale in New York from the catalogue and will not be available in New York for inspection or delivery. The painting will be released to the purchaser in Mexico in compliance with all local requirements. Prospective buyers may contact Sotheby’s representatives in Mexico City and Monterrey for an appointment to view the work. "[Siqueiros] knows what he wants and possesses the technique that permits him to express it with a profoundness and dynamism of the highest quality... the line, the drawing, the color, the ideas are all precise and defined... The colors he employs possess such an intensity and luminosity." 

-Eduardo Pallares, 1946



This work is accompanied by a certificate of authenticity signed by the artist and dated México, D.F. Noviembre 13 de 1973.