Ordóñez guns
Ordóñez guns are a type of late 19th century coastal artillery. Ranging in caliber from 150 mm (5.9 in) to 305 mm (12.0 in), most of the models were field guns, but some were howitzers. Salvador Diaz Ordóñez, an artillery officer in the Spanish Army, designed the guns, and they were made in Asturias, Spain at the Trubia Arms Factory (Fábrica de armas de Trubia). The Spanish installed them in forts and batteries at home, for instance at Ceuta, and throughout their empire, in Puerto Rico, Cuba, and the Philippines. The Ordóñez guns appear to have been used for protecting Spain's colonies; reportedly the Spanish generally reserved the higher quality, and much more expensive, Hontoria guns for the defense of Spain.
Although they have been obsolete for more than a century, a few Ordóñez guns have survived to the present as historical artifacts. There is one at Santa Clara Battery in Havana, a second, heavily damaged by the explosion of a shell, and brought from Subic Bay, at the Presidio of San Francisco, and a third at Castillo de San Cristóbal (Puerto Rico).