February 1922. Madrid. The Works of the Gran Vía. The Marquis of Villabragima (1), the deputy mayor of the Center district, Mr. Luis López Doriga (2); The architect Mr. Zuazo (3), representing Mr. Echevarrieta, concessionaire of the Works, and Messrs. Piera, Rojo and Tenas (4, 5 and 6) of the Construction Company "Fomento de Obras y Construcciones"