The Monarch advertising sign (letrero publicitario de Monarch in Spanish)[1] is a neon billboard located on the roof of a building at 51 Rancagua Street, in the Santiago Metropolitan Region of Santiago, Chile.

[3][4][5][6] The Luminosos Parragué company built and installed the Monarch advertising sign in 1955.

[5] According to the general manager of the company, Claudio Parragué says: "Las empresas querían que se les diera una suerte de magia a sus productos.

Por eso utilizamos un sistema mecánico electromagnético que con el tiempo terminó transformando a las piernas y a la botella de champagne en un clásico.

Because of this, we used an electromagnetic mechanical system that ended up transforming the legs and champagne bottle into an icon.