Fabrica de Calzado Excelsior, Mexico

The Excelsior Shoe Factory was located on the present corner of Benjamin Franklin and Carlos B. Zetina Streets (named after the man who founded Excelsior in 1902 who later became a senator, as well as presidential candidate) in the Tacubaya district of Mexico City.

Salviati made a mosaic in the crescent over the entryway representing Labor.

Today, the Universidad La Salle stands in the location.

Sources:
Barr, Sheldon. Venetian Glass Mosaics: 1860-1917. Antique Collectors' Club, 2008. 139.
Taringa! 
El Modo Museo 
Bulletin of the Pan American Union. vol LVI, 1923. 344.