Avenida 20 de Noviembre - 27
This is postmarked in 1940 with a Mexico stamp.
This real photo postcard is from Mexico City and features Avenida 20 de Noviembre (November 20th Avenue) and the Metropolitan Cathedral in the background by Constitution Square. There is also many vintage late 1930's cars.
Mexico stamp 1934
From the series: Folklore and History
Red Building 4 c